40-50 evens!! help me pls

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

One positive number is 9 more than twice another. if their product is 95, find the numbers

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base