The amount of interest earned on a savings account varies directly with the amount of money saved. If $34 is earned on a balance of $850. Identify the constant of variation and write an equation to represent the relationship.

Ataxi company charges $2.25 for the first mile and then $0.20 per mile for each additional mile, or f = $2.25 + $0.20(m - 1) where f is the fare and m is the number of miles. if juan's taxi fare was $6.05, how many miles did he travel in the taxi? if juan's taxi fare was 7.65, how many miles did he travel in taxi

Asphere has a diameter of 10 in. what is the volume of the sphere?

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