What is the answers part 1 & 2

Inequality: x - 21 1/2 ≤ 14 1/4, Solution: x ≤ 35 3/4

Step-by-step explanation:

Inequality: a difference between a and b is shown as a - b, as difference means subtraction. So, the difference between a number (let's say x) and 21 1/2 is shown as x - 21 1/2. No more means that one side of the inequality is not greater than the other side, thus, it is less than or equal to. Putting those two together gives us x - 21 1/2 ≤ 14 1/4.

Solution: An inequality is solved like an equation (with a few exceptions but it is irrelevant to this problem). Adding 21 1/2 to both sides of the inequality gives us x ≤ 35 3/4.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.