4x - 3y = k

-8x + 6y = 10

If the pair of equations has infinitely many solutions, what is the value of k?

A) - 10

B) - 5

Eliminate

C) 5

D) 10

Where would 4,500 go in integers, whole, and rational numbers

The quotient of a number and 6decreased by 10 is equal to 2?

Suppose an investment of $1,800 doubles in value every 7 years. How much is the investment worth after 42 years?

The United States uses 4 * 109 megawatt hours of electricity in a year. Mexico uses 2 * 108 megawatt hours in a year. How many times more megawatt hours does the United States use than Mexico in a year?

if person earned a score higher than 35 persons in his class of 50 students, what is the percentile score?

Each of the p children at a park receive 3 balloons. If the children receive at least 150 balloons in all, find the minimum number of children at the park.

1. z^2 = 1 √{ } = √{ } z = ± { } The solutions are { } and { }

What is the rate for 171 And 3

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A plane traveling from phoenix to san Francisco with a tailwind of 35 miles per hour takes 2.5 hours. returning with the headwind it takes the same plane 2 hours and 45 minutes. what is the average speed of the plane in calm conditions?