The city has 20 fire engines and 30 fire trucks. Find the ratio of the number of fire engines to the number of fire trucks in simplest form.

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one day's discharge at its mouth, 5.6 trillion gallons, could supply all of country a's households for seven months. based on this statement, determine how much water an average household uses each month. assume that there are 100 million households in country a. country a uses approximately nothing gallons per household per month.

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1