Ahairdresser combined three bottles of shampoo into one bottle. the first bottle had 4.8 ounces of shampoo, the second bottle had 5.4 ounces, and the third bottle had 6.6 ounces. the hairdresser used 2/5 6.72 of the shampoo from the new bottle when she washed her hair. how many ounces of shampoo did she use?

Students buying lunch at rockwell elementary school yesterday chose either burritos or pizza. 185 students chose burritos and 252 chose pizza. 1. estimate the number of students who brought lunch by rounding each number to the nearest hundred. 2. estimate how many students bought lunch by rounding each number to the nearest ten. 3. find the total number of students who brought lunch. which of your estimates is closer to the actual total? explain. 4. draw a figure on a sheet of paper. estimate how many pennies will fit inside the figure. check your prediction using pennies.

Multiplying an even number of negative numbers gives an answer that is choose from:

Arational number that is equivalent to -20/4?