Maria bought several post stamps and paid one dollar. there are stamps costing five cents, two cents, and one cent in the post office. she bought 10 times as many one-cent stamps as two-cent stamps, while the rest of the stamps she bought were five-cent stamps. how many one-cent stamps did maria buy?

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

Manny bought 12 pounds of vegetables at the supermarket. 75% of the vegetables were on sale. how many pounds of vegetables were not on sale? 98 points : )

X+y=-4 x-y=2 use elimination with adding and subtraction