A school event requires at least 3 parents for every 8 kids. How many parents for 40 kids

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Find the amplitude of a sinusoidal function that models this temperature variation