Please?? last one frfr.

Acamper leaves camp on a kayak and travels 50 miles east on a river, then he ties his kayak to the bank and travels 20 miles north on a bicycle. this trip can be plotted on the coordinate plane, where the camp is the point (0, 0). the distant of the camper to the camp can be found using the distance formula. which other formula can he use? a) 502 - 202 b) 502 + 202 c) 502 - 202 d) 502 + 202

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Which expression is rational? 6. , square root two, square root 14, square root 49