Plz halp quick first correct answer gets brainliest

find the height of a right square pyramid that has a rectangular base area of 70 square units and a volume of 140 cubic units.

a. 2 units
b. 6 units
c. 1 units
d. 18 units

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Is this a polynomial function? i need to know asap

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.