PLS HELP I NEED DEM SMART PEOPLE, PLS GIVE STEP BY STEP EXPLANATION A store is having a sale with a 19% discount on all merchandise. Write an equation representing between the regular cost of merchandise (r) and the discount received (d)

r(d)

Step-by-step explanation:

d is .19 which is equivalent to 19 percent. You can just multiply them to find the percent taken off then subtract.

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions