4. the usual toll charge over the bridge is $1.50. if you purchase a special sticker for $10.50, the charge is only $0.80. at least how many trips over the bridge are needed before the sticker would cost less than the toll charge? (use an inequality as well )

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Simplify the expression. -2/5(10+15m-20n)

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?