What is the slope of a line perpendicular to the line y=12/5x+4

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

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