Ok so the triangle part is 10 but I don’t know what the rectangle part is but the formula for a rectangle is A=base x high
Answer:

Step-by-step explanation:

Answer:
729 is 3 to the power of 6
Step-by-step explanation:
Answer:
$141.75
Step-by-step explanation:
189*.75
1-.25 b/c 25 percent off
Answer: x = -0.58
Step-by-step explanation:
-3x+2-5x-7=4x+2
First step, collect like terms
-3x -5x-4x = 2-2+7
-12x = 7
x = 7/-12
x = -0.58