Q#4:

acme produces widgets. they have fixed monthly expenses of $1200 and also have variable expenses of $12 for each widget. acme sells each widget for $24.

a) find cost function

b) revenue function

c) profit function.

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?