Evaluate the expression if x = -6 and y = -2
4xY

Find the domain of the following expression: 1/(√x)-2

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation

Write the ratio as a fraction in lowest terms. compare in inches. 5 feet to 50 inches