Iris needs to measure the height of the flagpole infront of her school. She places a mirror in e ground in such a way that she is able to see the top of the flag pole in the mirror when she stands 6 feet from the mirror and the is 42 ft from the base of the flagpole. How tall is the flagpole if her eye is 5'2 from the ground?

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?