please annswer 7 and 8 and show your work

Question 7 10 pts How long will it take for $7000 to grow to $10,000 at 10% compounded semiannually? Assume simple interest is allowed for part of a period. Give answer in whole conversion periods and on your work sheet find the plus the number of additional days and give your second answer there. Question 8 10 pts If an investment increases from $5000 to $7500 in 6 years, what is the nominal rate converted quarterly? Give answer to nearest .01%