6x - 5y = 15, x=y+3 what does x and y equal

Subtract fraction 4 1/8 - 3 3/8

How do you find density when only the volume is available? I need to find the density of 280ml

How do you divide 23 into 713

A house costs $600 more than 12 times the lot on which it was built. If the lot cost x dollars, what did the house cost? Which expression represents this? 600 + 12x dollars 600x + 12 dollars 720x dollars

What other name (s) are the solutions of a quadratic equation known by? A. roots B. x-intercepts C. zeros D. all of the above

If z=5 and x = 6 what is z (z (z) x)) - 9

Sid wrote 541,309 on his paper. Using words and numbers explain how the number would change if he switched the digits in the hundred thousands and tens place

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.