A3-ounce serving of tuna provides 21 grams of protein. use equivalent ratios to find how many grams of protein are in 9 ounces of tuna

63 grams of protein.

Step-by-step explanation:

3 ounces = 21 grams of protein.

Question is how many grams are in 9 ounces, you then have to find the ratio that you need to use to find out how many grams of protein are in 9 ounces. Therefor you divide the amount that we don't know the equal amount of grams by the amount we do know the equal amount of grams, giving us the ratio.

9 divided by 3 = ratio (3)

Then use the ratio for the grams of protein.

21 x 3 = 63.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: