Bernie began building a model airplane on day 7 of his summer vacation and finished building it on day 65. he worked on the plane each day. how many days did it take?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee, f, for a single job is a function of the number, t, of hours it takes him to complete the job. write the function's formula.

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?