How might you eliminate the x-term from the top equation?
15x + 7y= 4
5x + 7y= 2
A. Subtract the bottom equation from the top equation.
B. Add the bottom equation to the top equation.
C. Multiply the bottom equation by two before subtracting it from the
top equation
D. Multiply the bottom equation by three before subtracting it from
the top equation.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Put the following steps for calculating net worth in the correct order

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?