Bethany sells roses and petunias. The expression 3r+2.5p gives the cost (in dollars) of r roses and p petunias. What is the cost of 7 roses and 8 petunias?

Ye bro

Step-by-step explanation:

The total cost is $41.

Step-by-step explanation:The given expression is :

Now we know that the roses are represented by = r

And the petunias are represented by = p

So, we can say that each rose costs $3 (3r) and each petunia cost $2.5 (2.5p)

So, we can now find the total value of 7 roses and 8 petunias.

Cost of 1 rose = $3

Cost of 7 roses is =  

Cost of 1 petunia is = $2.5

Cost of 8 petunias is =  

Total cost of the flowers =  = $41.

kjgfcvbjkl

step-by-step explanation:

sdfghjkl; vbnm,

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64