Devon writes a number pattern. He starts with 3 and follows the rule “multiply by 2." Which numbers could be in Devon's pattern

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.