Justin is taking a taxi cab to pick up his car from the auto shop. the taxi service charges an initial fee of $3. there is an additional charge of $0.80 for each mile the taxi drives. how much will it cost justin if the auto shop is 14 miles away?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

I’m stuck on this equation, anyone got the answer?

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000