A sidewalk of uniform width is built around three sides of a rectangular lot (one of the shorter sides is left alone). The
dimensions of the lot are 30 10 ft. The total area of the lot
and sidewalk is 528 ft?. What is the width of the sidewalk?

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

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

Which of the following is the graph of y= square root -x-3