A teacher spends $150 on school supplies for the classroom, folders are $0.25 each and notebooks are $2.50 each. This linear relationship can be represented by 0.25x+2.50y=150, where x represents the number of folders and y represents the number of notebooks.

Ashopper bought a watermelon a pack of napkins and some paper plates in his state there was no tax on food the tax rate on non-food items is 5% the total for the three items he bought was 825 before tags and he paid $0.19 in taxes how much did the watermelon cost

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

Which statement justifies why angle ebc measures 90?