The sum of two prime numbers

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

What is the approximate difference in tenths between √12 and √15?