Calculus- need with this problem. above the sigma is an infinity sign and below it says n=1 the equation is 6*(-1/4)^n-1

B

Step-by-step explanation:

S = An/1 - r

A1 = 6

6/1 - (-1/4)

6/1 + (1/4)

6/1.25

S = 4.8 or 24/5

5050 i think

step-by-step explanation:

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5