Answer:
18. 30%
19. 62.5%
Step-by-step explanation:
42/140 mult by 100 30%
25 + 15 = 40
25/40 mult by 100 62.5%
Answer:
A. -3x^2+7x-1
Step-by-step explanation:
(3x^2+3x-3)-(6x^2-4x-2)
3x^2+3x-3-6x^2+4x+2
-3x^2+7x-1
Answer:
5
Step-by-step explanation:
Answer:
30% discount
Step-by-step explanation:
To find the percent discount write a proportion.

Cross multiply numerator with denominator of each fraction to solve for x.
1344(100) = 1920(x)
134400 = 1920x
70 = x
This means you pay 70% of the price. The discount was 30%.
Answer:
288
Step-by-step explanation:
40% divide by 100 will equal 0.4
then multiply 0.4 by 720 which equals to 288