Is 7/28 in simplienst form?please help me it's a quiz

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Solve 3x-18=2y and 5x-6y=6 by elimination show work

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