Mary waits tables at a dinner every weekend to make extra money. she donates 20% of her tip to her favorite charity and then keeps the rest. last weekend mary earned $250 in tips. how much money did mary keep to herself last weekend? a) $200 b) $125 c) $50 d) $25

What are the domain and range of the function? f(x) = -4 (sqrt)x

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?