Azookeeper predicted the weight of a new baby elephant to be 239 lb when it was born the elephant actually waited 271 pounds at birth what was the percent error of the zookeeper's prediction a) 13.39% b) 32% c) 11.81% d) 88.19%

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?