Jenna bought a gallon of milk at the store for
$3.58. about how much change did she receive
from a $20 bill?

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.