This equation is called an expression. I know this because there are variables instead of numbers.
Answer:
a is equilateral and right, b is scalene and acute, c is equilateral and acute, d is isoseles and right, e is scalene and either acute or right, f is equilateral and acute, g is scalene and acute, and h is scalene and obtuse
Step-by-step explanation:
Let's solve ~
Hence, the correct choice is D
7.) (36+42) x 24 / 2 = 936
8.) (11+14) x 10 / 2 = 125
9.) 16 x 9 / 2 = 72
10.) 21 x 32 / 2 = 336
So you have to make two equations. Let's say x stands for shirts and y stands for pants. 4x+3y=85.50. The second equation would be, 5y=115-3x. Since you need one of them to have x= or y=, you need to change it to that form. y=. Then you do substitution and solve which leaves you with:
Shirts are $7.50
Pants are $18.50