Find the unit rate.
10 deliveries in 5 hours = |
deliveries per hour

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply