The variable costs associated with a certain process are GHS0.65 per item. The fixed costs per day have been calculated as GHS250 with special costs estimated as GHS0.02, where Q is the output level produced ( i, e, the number of items produced ).
a. Derive the average cost of production function
b. Calculate the output level at which average cost is minimised
c. Calculate the average cost of production
d. What limitation is placed on Q?

Nine more than four times a number is the same as one less than twice the number. find the number?

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Which of the following graphs could represent a cubic function?