Answer to the best of your abilities, pls & ty !

A = 54 in²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = h (b₁ + b₂ )

where h is the height and b₁, b₂ the parallel bases

Here h = 6 and b₁ = 12, b₂ = 6 , then

A = × 6 × (12 + 6) = 3 × 18 = 54 in²

ok

step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40