Carli made 9 greeting
cards in 3 hour. she determined her unit
rate to be card per hour. find her error
and correct it.

Step-by-step explanation:

Shes wrong because she did it in 3 hours which means she would have made 3 cards and not 9.

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !