Find and simplify an expression for the area of two rows of b squares with side lengths of b centimeters and when the number of boxes in the width are unknown

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Which of the following expressions are equivalent ?

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8