Use the substitution method to solve the system of equations.

3x+7y=1

y=x-7

A. 5,-2

B. 3,-4

C. 4,-3

D. 2,-5

Cora bought plastic tubes that are each 0.82 meters long. If Cora makes a line of 3 tubes by placing them end-to-end, how long will it be?

Divide 2*10^6 by 5*10^-2

There re five gold fish 3 dround how many are left

A fund drive announces that it has raised $4,376, which is 20% of it's goal. How much more must be raised?

What is the answer to this equation 4x-9=2x+5

Two out of six computers in a lab have problems with hard drives. If three computers are selected at random for inspection, what is the probability that none of them has hard drive problems

What is square minus?

In which number does one digit 6 have a value if 1/100 of the other digit 6? A. 66.04 B. 46.60 C. 46.06 D. 40.66

Sue has four DVD's and Terry has six DVD's. They put all their DVD's together and sold them for $10 for two DVD's. How much money will they earn if they sell all of their DVD's?

At the movie theatre, child admission is $5.70 and adult admission is $9.80 . On Thursday, twice as many adult tickets as child tickets were sold, for a total sales of $556.60 . How many child tickets were sold that day?