Which phrase describes an unknown or changeable quantity? a. 60 seconds multiplied by 5 b. 2 times the number of pages in the book c. 15 years of schooling d. 3 dollars and 76 cents

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.

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

If angle 2=3x +1 and angle 3=2x +4what is angle 2