What is the measure of A25 B 130 C 180 D50

Which statements regarding the diagram are true? check all that apply.

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.