Solve the system.

{j+k=3

{j-k=7

Use the substitution method.

A. The solution is (5, - 2).

B. There is no solution.

C. There are an infinite number of solutions.

D. The solution is (8, 1).

Write 24 over 40 in simplest form

3 less than the product of a number k and 7 is y

Write an algebraic expression for the phrase five less than the product of six and N

Solve the problem and enter your solution for the variable below. Do not include units in your answer. A teacher needs 2 weeks to cover each chapter in an algebra course. How many chapters can the teacher cover in 16 weeks?

Periodically a bottling company gets complaints that their bottles are not holding enough liquid. To test this claim the bottling company randomly samples 70 bottles and finds the average amount of liquid held by the bottles is 9.

Write (x+6) (x-2) in standard form

Aaron wants to buy 2 concert tickets that cost $25.50 each. Aaron's grandfather pays him $4.25 an hour to rake leaves. How many hours does Aaron have to rake leaves to earn the total cost of the tickets?

Writes the pair of fractions with a common denominator for 3/10 and 2/5

The volume of this cylinder is 6,430.72 cubic centimeters, the height is 8 cubic centimeters. What is the radius? Use ≈ 3.14 and round your answer to the nearest hundredth.

A meteorologist predicts a 20% chance of rainfall today. Which statement describes the likeihood of rainfall today?