You sell a total of 17 pieces of disposable and washable face masks. what is the answer

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?

The deepest part of the swimming pool is 12 feet deep. the shallowest part of the pool is 3 feet deep. what is the ratio of the deeply of the deepest part of the pool to depth of the shallowest part of a pool?

Can anyone me get through my algebra 2 class? the only class i need to graduate..