Solve the linear equations

-2x+5y=39

2x-3y=-25

Ami saved $14.25 on a new scarf she purchased from macy's. she paid at most $25. What is x, the original cost of the scarf before the discount?

What is - 3 2/3 * (-2 1/4)

Solve the equation. 3 (x + 4) = 6 (x - 8) + 12

20% of the 520 students in Wendover Middle School were involved in school sports. Of those students, 12.5% were on the wrestling team. How many students were on the wrestling team?

Which equation represents h (x) ? h (x) = RootIndex 3 StartRoot x minus 2 EndRoot h (x) = RootIndex 3 StartRoot x + 2 EndRoot h (x) = RootIndex 3 StartRoot x EndRoot minus 2 h (x) = RootIndex 3 StartRoot x EndRoot + 2

A batch of 330 samples of rejuvenated mitochondria contains 6 that are mutated (or defective). Two are selected from the batch, at random, without replacement.

What is the equation form of a pure quadratic? a. ax^2+bx=0 b. ax^2+c=0 c. ax^2+bx=c d. ax^2+c=bx

The horsepower, H (s), required for a racecar to overcome wind resistance is given by the function : H (s) = 0.003s^2+0.07s-0.027, where (s) is the speed of the car in miles per hours.

Is 20, 10, 9 a triangle

What is 248 rounded rounded to the nearest tenth