Bethany sells roses and petunias. the expression 3r+2.5p3r+2.5p gives the cost (in dollars) of rr roses and pp petunias. what is the cost of 77 roses and 88 petunias? \$

$41.

Step-by-step explanation:

We have been given an expression , which gives the cost in dollars of r roses and p petunias.

To find the cost of 7 roses and 8 petunias we will substitute r=7 and p=8 in our given expression.

Therefore, the cost of 7 roses and 8 petunias is $41.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

yes

step-by-step explanation: