Answer:
Use the Pythagorean theorem
Step-by-step explanation:
The pythagorean theorem is
where a is a height, b is a height, and c is the hypotenuse, which is the longest side of a triangle. For example, if the triangle has two side with lengths of three and four we would put them into the equation to get:

Simplify the equation to get:

Add 16 and 9 to get 25 and take the square root of both sides:

The sqrt of 25 is 5. Therefore, the length of the hypotenuse, or c, is 5.
Answer:
13, 19, 73, 89
Step-by-step explanation:
Prime numbers only have two factors, 1 and itself.
P-99 as you would subtract 99 from original
For this case we must resolve the following inequality:

Subtracting 8 from both sides of the inequality:

Equal signs are added and the same sign is placed.

Thus, the solution is given by all values of "y" greater than or equal to -20.
Answer:
"y" belongs to the set [-20,∞)
4 hats at $5 each is a total of $20
4x5=20
44 - 20 = 24 Subtract the cost of the hats from the total
24 / 2 = $12 Divide the total that is left by the 2 shirts
Each shirt costs $12