Simplify: (4a + 2b)(a - b)

a) 4a^2 - 6ab - 2b^2
b) 4a^2 - 2ab - 2b^2
c) 4a^2 - 8ab - 2b^2
d) 4a^2 + 2ab - 2b^2

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.

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?