You are buying balloons for a party. A small balloon costs $3 A large balloon costs $5 Write an algebraic expression for the cost of x small balloons and y large balloons. Then find the total cost for 11 small balloons and 9 large balloons. Please solve! I'm stuck!

$3x+$5y=C and the total cost is $ 78

Step-by-step explanation:

the equation first is going to be  $3x+$5y=C

x: small balloons

y: large balloons

c: total cost

Now to find the how much the total cost is, you should substitute the variables  and then solve the equation.

x: 11

y:9

3(11)+5(9)= 33+45

78

78 dollars

Step-by-step explanation

x=33  

y=45

have to leave.  Will check back with equation

its an acute right triangle

step-by-step explanation: