Solve the system of linear equations below. x - 3y = -3
x + 3y = 9
A.
x = -12, y = 7
B.
x = 3, y = 2
C.
x = 6, y = 1
D.
x = 6, y = 2

Is the square root of 4 plus the square root of 16 rational?

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

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?