A standard coin has two sides. One side is heads and one side is tails. A coin is tossed 75 times. If the coin lands on heads 35 times, what is the
experimental probability?

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup