The school store opened on the first day of school with 42 notebooks and 18 pencils. Within two days it sold all of these items. On the first day, twice as many notebooks were sold as pencils. On the second day, for every 5 notebooks sold, 2 pencils were sold. How many notebooks and how many pencils were sold on
each day?

Can (3,5 and square root 34) be sides on a right triangle?

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?