Please help!
What percentage of students scored between 70 and 90?image^

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute