In triangle abc, which trigonometric ratio has the value a/c?

a) tan a
b) cos a
c) tan c
d) cos c
e) sin 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 value of x in the equation 2(x-4) = 4(2x + 1)?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²