Carla was saving coins. She started with 7 coins in her collection. She adds 3 coins each month. How many coins will she have in the 8th month? Choose the rule that matches this situation.

A. 8 + 3 * 7

B. 31 coins

C. 7 + 3 * 8

D. 7 + 3

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

What is the value of f(x) = 2.2 for f(-2)?

W-16=-12 solve each one step equation plz