The expression 4+10h÷2 models the total cost in dollars for Elizabeth to rent a life jacket and share a kayak for h hours. What is Elizabeth's total cost if the kayak is rented for 3 hours? Enter your answer in the box.

What is the value of x in the following equation. -x ^3/2 = -27

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]