30 points: The graph below shows three functions: Which function has all real numbers as its domain? (1 point)
A. Only f(x)
B. Both g(x) and p(x)
C. Both f(x) and g(x)
D. Only p(x)
Need real and right answer asap:)

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible