Stuck here . what is 5d+5d+d+d i know it’s 12 but how do you write in expression different way

Pls will give brainliest and all p.s u can zoom in if u cant see plss

What is the measure of the smallest angle in the diagram? 15 29 32 45

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years