Answer:
-40
Step-by-step explanation:
f(a) = a³ - a² + a - 1
f(-3) = (-3)³ - (-3)² + (-3) - 1
f(-3) = (-27) - (9) + (-3) -1
f(-3) = -27 - 9 -3 - 1
f(-3) = -40
1/3b-1/3
factor out 1/3
1/3(b-1)
hope this helps
Answer:
Answer: l = 82.5
Step-by-step explanation:
11/2 x 15 = 82.5.
3-1
6-2
9-3
18-18
I think those are the proper ratios
I=1.5m
m+1.5m=20
2.5m=20
m=8
20-8=12
Isobel worked 12 hours.
