Question

enter the missing values in the area model to find $9(7a - 5)$

Explanation:

Step1: Multiply 9 by 7a

To find the area of the first rectangle (with side lengths 9 and 7a), we use the formula for the area of a rectangle, \( \text{Area} = \text{length} \times \text{width} \). So, \( 9\times7a = 63a \).

Step2: Multiply 9 by -5

To find the area of the second rectangle (with side lengths 9 and -5), we again use the area formula. So, \( 9\times(-5)= -45 \).

Answer:

The missing values in the area model are \( 63a \) (for the first rectangle) and \( -45 \) (for the second rectangle). When combining these, we get \( 9(7a - 5)=63a - 45 \). If we are only asked for the missing values in the boxes (from left to right), they are \( 63a \) and \( -45 \).