Nikki and Nikko can do 140 jumping jacks in 6 minutes. How long will it take them to complete 350 jumping jacks? Use at least 2 ways to show your answer.

Solve the system of equations. y= 2x y= x^2 - 15

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d