Shana ran 6 miles in one week. this was one third of what she ran in the month. write and solve a division equation to find how far she ran in the month.

7x+8y=-18, 4x-9y=-3 solve the system of equations

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years