Duane always uses 3/10 of money he earns mowing lawns to buy lawn supplies for the work. He puts the rest of the money in the bank. If Duane earned $80 last month mowing lawns, how much money did he put in the bank?

In the film, zeke the zombie slayer versus the zombies from space, zeke slayed 140 zombies. in the sequel, zeke the zombie slayer versus the zombies from space, part 2, he slayed 5% more zombies. how many zombies were slain by zeke in the sequel?

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

What is the value of x in the equation7x+2y=48 when y=3