Sam has already worked for hours this week. He washes cars, and can wash a car in hours.
Let the total hours worked be represented by h.
Let the number of cars washed be represented by c.
An equation that represents this scenario is:
= c + 1
h =
What is the total hours worked if he washes 4 cars?
Answer as a decimal.

Which of the following statement about pascal's triangle are true?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters