Hailey can do 24 math problems in 48 seconds, Robert can do 30 math problems in 60 seconds, and Krista can do 90 math problems in 135 seconds. Who has the fastest time completing one problem?

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w

Are the corresponding angles congruent? explain why or why not.