What substitution should be used to rewrite 4x4 – 21x2 + 20 = 0 as a quadratic equation?
u = x2
u = 2x2
u = x4
u = 4x4

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

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

Which statements are true about additional information for proving that the triangles are congruent check all that apply