Solve the following system of equations.
- 2x+7y=9
3x - 4y=-20

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days