The mass of a grain of sand is about 10^-3 gram. about how many grains of sand are in a 10kg bag of sand?

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic. org