Justin and his friends dan went to movie if they each bought popcorn for 4.25 and a soda for 2.25 what was their total bill after adding 5% sales tax

Add 4.25(2)+2.25(2)=13

Multiply 13*0.05 to find 5% of 13.

13*0.05=0.65, which means the 5% tax is 65 cents.

Add 0.65 and 13 to find the total bill:

0.65+13=13.65

The total bill is $13.65.

I hope this helps :)

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 !