How many distinct numerical values can be represented with 4 binary digits?

Lydia finds a car that costs 13,000, and she has 2,500 saved for a down payment. if she qualifies for a 5% interest rate, how much will the interest be calculated on? 13,000? 12,000? 15,500? 10,500? in : )

25 points i think it's a, am i correct

Select the sequence that lists earth's layers from hottest to coolest. a. mantle, crust, core b. core, mantle, crust c. crust, core, mantle d. mantle, core, crust