Carmine paid an electrician x dollars per hour for a 5-hour job plus $70 for parts. The total charge was $320. Write an equation to determine how much the electrician charged per hour. Then, use your equation and solve algebraically for x. Explain your solution?

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.

How many verticies does a triangular prims have

Which of these phrases uses parallelism to create a sad tone?