Which is the best first step when solving the following system of equations? x+y=3
4x-y=7
O Multiply the first equation by 4.
Add the first equation to the second equation.
O Multiply the second equation by -1.
O Subtract the second equation from the first equ

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?

286 divided by 457.6 what is the quotient?