How to find a missing side length of a non right triangle?

If 45 cookies will serve 15 students, how many cookies are needed for 90 students?

What property is used in the second step of solving the inequality below? Given 5x-9 <91 5x < 100 X<20 Multiplication Property O Identity Property O Addition Property O Multiplication Property O Transitive Property

A 16oz box of crackers costs $3.99 and a 38oz box of crackers costs $6.99. Which box is better?

What is the vertex of f (x) = |x + 8| - 3? (-8, - 3) (-8, 3) (8, - 3) (8, 3)

2/3 written as a fraction with a denominator of 9

Find the area 3ft 4ft 9ft 5ft

The product of 7 and a nimber increased by 3 is equal to twice the number subtracted from 39

F (x) = 3x-1 and g (x) = x+2 find (f+g) (x)

Cosxsinx-2cosx=0 I dont know how to solve this

A figure has two pairs of parallel sides but has no perpendicular sides. Its sides are not all the same in length. What is the figure?