A T-shirt launcher can launch 105 shirts in 20 minutes. What is the rate in shirts per hour?

The T-shirt launcher can launch 315 shirts per hour.

c is the correct answer

step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,