Find the coefficient of t to the 4th power in the expansion of (-9t-9) to the 7th power select one: a. -25,515

b. -100,442,349

c. -167,403, 915

d. -4,782, 969

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

Find the dimensions of the circle. area = 64π in.² r= in.

Sara has 2 2/3 cup taco meat. she needs 1/6 cup to make one taco. how many tacos can sara make with the taco meat she has?