What does the curvy (i) mean in a math equation?

What is 576 divided by 47

1) On Wednesday 62% of the customers who bought gas at a gas station made additional purchases. There were 350 customers who bought gas. How many of these 350 customers made additional purchases?

Haddie makes and sells knit scarves. Next week she will pay a $25 fee for the use of a booth at a craft fair. She will charge $12 for each scraft fair.

3 and a third minus 2 and two fifths I'm not looking for the answer, I want to know HOW to solve this problem. Mixed numbers always trip me up

What is 14 52/60 simplified to

You drive an average of 300 miles per week in a vehicle that gets only 14 miles per gallon overall. with the cost of gasoline at $3.

F (x) = 9 sin (x) + cot (x), - π ≤ x ≤ π find the interval of increase.

Rewrite the expression in the form 4^n. 4^11/4^-8

Valerie accidentally backed her car into a dumpster and damaged her bumper. The body shop estimated her damages to be $650.

P is the set of integers that are greater than or equal to - 3 a d less than - 1