Marco makes $18.80 per hour working at a furniture store. After 40 hours in one week, he makes 1.5 times his regular wage. How much did Marco make working 52 hours in one week?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is