F(-1)
replace all x with -1
f(-1)=-3(-1)^2+2(-1)-7
f(-1)=-3(1)-2-7
f(-1)=-3-9
f(-1)=-12
-5x•(2x^2+x+3) is the answer
Answer:
$337.50
Step-by-step explanation:
$12.50(16) = $200
$5.50(25) = $137.50
Add the totals up:
$200 + 137.50 = $337.50
Ryan's revenue for last month was $337.50 :)
Step-by-step explanation:
In ten minutes she walked 1-0.5=0.5 miles.
60 minutes/10 minutes=6. So 0.5 miles ×6=3 miles per hour