Which ordered pair is a solution to the system of equations?

2x-y=-1

2x-4y=8

(7, - 5)

(-2, - 3)

(8, 2)

(1, 3)

Solve for x. -4log2 (5x) = - 12

Alexa mom has 3 kids. Their names are Ally and Alex, what is the 3rd ones name.?

If the average salary for a college instructor in 1925 was $2300 and that average salary increased each year by $180, in what year was the average salary for a college instructor $10,040?

A first number plus twice a second number is 4. twice the first number plus the second totals 11.

Percent of change from 125 to 75

I have 30 ones, 82 thousands, 4hundred thousands, 60 tens, and 100hundreds what number am i

Lim of (x^3-13x+12) / (x^3-14x+15) as x approaches 3 without using L hopital's rule.

A company wants to estimate the mean net weight of all 32-ounce packages of its yummy taste cookies at 95% confidence. it is known that the standard deviation of net weights is 0.1 ounce. the sample size that will yield the margin of error within 0.

How much should you invest at 3.9% simple interest in order to earn $65 interest in 12 months?

Solve the system - 3x + 4y = - 22 2x + 7 = 5