Yolanda is buying supplies for school. she buys n packages of pencils at $1.40 per package and m pads of paper at $1.20 each. what does each term in the expression 1.4n + 1.2m represent? what does the entire expression represent?

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.