Answer:
21.70
Step-by-step explanation:
First find the discount
31 * 30%
31 *.30
9.3
Subtract from the original amount
31 - 9.3
21.70
Answer:
m = 
Step-by-step explanation:
Given
y = mx + b ( subtract b from both sides )
y - b = mx ( divide both sides by x )
= m
Answer:
I'll edit the answer, but what are the equations?
Answer:
11
Step-by-step explanation:
4+5+7+14+17+12+18=77
Divide your total by the amount of numbers you have (7); 77/7