Need to solve
15,000,000 = 4700e 0.154t

On their way home from school. terri and evie started walking out for two blocks and then running for three blocks and then repeating that pattern. if they can walk a block in 2 minutes and run a block and 45 seconds how long will it take them to go 18 blocks?

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

The anwser cause i do not understand just plez