Yolanda is buying supplies for school. She buys n packages of pencils at $1.50 per package and m pads of paper at $1.40 each. What does each term in the expression 1.5n + 1.4m
represent? What does the entire expression represent?
The term 1.5n represents the (select)
The term 1.4m represents the
(select)
.
The expression represents the (select)

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

The area of each triangle is 7 square units. the surface area of the triangular prism is