The electricity rates charged by monroe utilities in the summer months are as follows: base charge = $ 8 $8 first 800 800 kwh or less at $ 0.05 $0.05/kwh over 800 800 kwh at $ 0.08 $0.08/kwh the base is a fixed monthly charge, independent of the kwh (kilowatt-hours) used during the month. a . a. find an expression for the cost function c ( x ) c(x) for usage of or under 800 800 kwh.

Step-by-step explanation:

Let 'x' be the usage in kWh. When usage is at or under 800 kWh, the cost function C(x) is given by the base charge of $8 added to the rate of $0.05/kWh multiplied by the consumption 'x', in kWh.

Therefore, for 0 ≤ x ≤ 800, the cost function is:

b i think

step-by-step explanation:

not really sure

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls