Answer:
$61
Step-by-step explanation:
Given
Number of days, x = 5
Expenditure per day, E'(x) = 10x + 11
Required
Determine the expenditure per day (E'(x))
From the question, we have that

Substitute 5 for x



Hence, the expenditure for 5 days is $61
Answer:
22
Step-by-step explanation:
4x² + 3x = 4(2)² + 3(2) = 4(4) + 6 = 16 + 6 = 22
Answer: 22
Answer:
B
Step-by-step explanation:
y=x you can imagine by drawing graph
Answer:
6x^2 -10
Step-by-step explanation:
(5x²+2) - (-4x²+7)+(-3x²-5)
Distribute the minus sign
(5x²+2) +4x²-7 +(-3x²-5)
Combine like terms
5x²+4x²-3x² +2-7-5
6x^2 -10