If - 5x*7=1, then x=

What will the reading on the Richter scale be for an earthquake that has an intensity of 3.8•10^6 and a reference value of 1? A: 1 B: 3.8 C: 5.4 D: 6.6

At maximum speed, an airplane travels 1680 miles against the wind in 5 hours flying with the wind, the plane can travel the same distance in 4 hours. let x be the maximum speed of the plane and y be the speed pf the wind.

A road sign is in the shape of a regular pentagon. What are the measure of each angle on the sign

4k-36 = 9k-44 what is k

Solve the system algebraically. 3x - 2y - 1 = 0 y = 5x + 4 What is the solution? { (-9/7,-17/7) } { (9/7,17/7) } { (9/7,-17/7) }

Henry wants to earn more than $68 trimming trees. He charges $6 per hour and pays $4 in equipment fees. What are the possible number of hours Henry could trim trees? Use t for the number of hours. Write your answer as an inequality solved for t.

Factor completely: x^3+8x^2+7x

Taj has a choice of water, iced tea, or lemonade; with lemon or lime twist; served in a small or large glass.

Does the equation y = x/2 represent a proportional relationship

Avery has 2 blue marbles. one sixth of avery's marbles are blue. how many marbles does avery have mama 2 6 8 12