75% of the students in the class are boys there are 18 boys in the class wwhat is the total number of students in the class

Write an expression that is equivalent to the following: x+x+x+x-20

What is the answer to. 5-x<8*=-3

If a man is driving at a rate of 80 km per hour, how many kilometers will he travel in 30 minutes?

A rectangular lot is 85 yards wide and 125 yards long. Give the length and width of another rectangular lot that has the same perimeter but a smaller area.

Salaries differ greatly between faculty members at public universities in the United States. Full professors (who have tenure and do research) earn an average of $125,572 per year with a standard deviation of $18,328.

What is 8.49x10^-7 in decimal form? 0.0000000849 0.000000849 8,490,000 849,000,000

Travel Ez sells dollars at a rate of ($1.40) / (1 euro) and buys dollars at a rate of ($1.80) / (1 euro). At the beginning of a trip, Sophie exchanged $540 to get 300 euros.

What is the range of y = square root x+7+5?

Is to a solution of the equation 3x+6=6x?

What would - 9 1/2 be as a decimal?