Linda has a bag of marbles. she chooses a marble from the bag, writes down the color, and places the marble back in the bag. she repeats this process 130 times.

linda calculates the relative frequency of each color marble.

outcome orange green black yellow blue
relative frequency 0.18 0.20 0.19 0.22 0.21
which statement about linda's experiment is true?

the outcomes do not appear to be equally likely, so a uniform probability model is not a good model to represent probabilities in linda's experiment.

the outcomes appear to be equally likely, so a uniform probability model is a good model to represent probabilities in linda's experiment.

the outcomes do not appear to be equally likely, so a uniform probability model is a good model to represent probabilities in linda’s experiment.

the outcomes appear to be equally likely, so a uniform probability model is not a good model to represent probabilities in linda's experiment.

Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .

Tell whether the two rates form a proportion

Submarines control how much they float or sink in the ocean by changing the volume of air and water contained in large ballast tanks. when the tanks are completely full of water, the submarine increases its overall mass and sinks down to the bottom. when the tanks are completely full of air, the submarine reduces its overall mass and floats to the surface. depending on the density of the seawater surrounding the submarine, it will pump seawater in or out of the tanks in order to achieve the same overall density as the sea water and float neutrally in the water. the volume of the submarine never changes. when the tanks are completely full of water, a submarine with a volume of 7.8\times10^3\text{ m}^37.8×10 3 m 3 7, point, 8, times, 10, start superscript, 3, end superscript, space, m, start superscript, 3, end superscript has a total mass of 8\times10^6\text{ kg}8×10 6 kg8, times, 10, start superscript, 6, end superscript, space, k, g. the density of the seawater is 10^3\text{ kg/m}^310 3 kg/m 3 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. to make that submarine float neutrally, and neither float nor sink in the ocean, what volume of water does that submarine need to subtract from its tanks?