Elizabeth had 12 stamps. she decided to write letters to some of her relatives. after she sent herietters, she had 6 stamps left. how many letters did she mail?

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

If square root x = -7, then x= -49 true or false

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?