6.25
explanation: if you divide 6.25 by 5 you get 1.25, if you divide 17.40 by 12 it’s 1.45. Therefore you pay more.
You plug in x for 3 so it would be 10(3) + 2, and 10 times 3 is 30 and 30 plus 2 is 32
Answer:
4x^2 -8
Step-by-step explanation:
f(x)=3x^2-9
g(x)=x^2+1
(f+g)(x)=3x^2-9 +x^2+1
Combine like terms
= 4x^2 -8
2000 / 4 = 500
500 + 5% = 25
1500 + 1%= 15
Total cash back = 40$
Teachers / Students = 3 / 74
Teachers / 2,500 = 3 / 74
To solve a proportion,
you cross-multiply: Teachers x 74 = 2,500 x 3
Divide each side by 74 : Teachers = 2,500 x 3 / 74
= 101.4 ===> 101 teachers
