5 for $3.50 has the lowest unit price because 3 for $2.19 is $0.73 per item, 4 for $3.00 has a in it price at $0.75, 5 for $3.50 has a unit rate for $0.70 per item, and $0.72 per item is more expensive than $0.70 per item
A number squared would be x squared (x^2)
The product of x squared and ten is 10x^2
Then subtract nine
10x^2 - 9
Answer:c
Step-by-step explanation:
Answer:
5k - 2
Step-by-step explanation:
To evaluate f(2 - k), substitute x = 2 - k into f(x), that is
f(2 - k) = 8 - 5(2 - k) = 8 - 10 + 5k = 5k - 2