B could be the only answer
The distance traveled by the balloon in every minute makes an arithmetic sequence with a first term equal to 40 ft and common difference equal to 20. The nth term of an arithmetic sequence is calculated by,
an = a1 + (n - 1) x d
Substituting,
an = 40 + (15 - 1) x 20 = 320
Thus, the answer is letter B. 320 feet.
Answer:
z-test
hu=50
Step-by-step explanation:
Okay so i cant figure out the first one, but the second one looks like -7:3
Answer:
-2x-1
Step-by-step explanation:
(3x-4)-(5x-3)
Distribute the minus sign
3x-4-5x+3
Combine like terms
3x-5x -4+3
-2x-1
