I’ll make you brainliest

suppose yogurt is on sale for $0.50 a piece, and you have a coupon for $0.30 off your total purchase. write a function rule for the coast of n yogurts. how much would 20 yogurts cost?

a: c(n)=0.50n-0.3; $9.70
b: c(n)=0.30n-0.5; $5.50
c: c(n)=0.2n; $4.00
d: c(n)=035n; $10.00

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).