A If f(x) = 5x2 - 6x + 7, find each of the following. (a) f(0) (b) f(-6) (c) f(5) ​

a) 3

b) 39

c) - 27

Step-by-step explanation:

a) f(x) = 5x2 - 6x + 7

f(0) = (5x2) - (6(0) + 7)

f(0) =   10  -   (0 + 7)

f(0) =   10  -  7

f(0) = 3

b) f(x) = 5x2 - 6x + 7

f(-6) = (5x2) - (6(-6) + 7)

f(-6) =    10 - (-36 + 7)

f(-6) =    10 -  (-29)

f(-6) =     10 +29 = 39

c) f(x) = 5x2 - 6x + 7

f(5) = (5x2) - (6(5) + 7)

f(5) =  10  -   (30 + 7)

f(5) =  10 - 37

f(5) = - 27

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.