Which set of numbers is arranged in descending order?

Question

A. 7.6 × 10^-²⁵, 7.2 × 10^-³⁰, 7.2 × 10^-²⁵, 7 × 10^-³⁰
B. 7 × 10^-³⁰, 7.2 × 10^-²⁵, 7.2 × 10^-³⁰, 7.6 × 10^-²⁵
C. 7.6 × 10^-²⁵, 7.2 × 10^-²⁵, 7.2 × 10^-³⁰, 7 × 10^-³⁰
D. 7.2 × 10^-³⁰, 7 × 10^-³⁰, 7.6 × 10^-²⁵, 7.2 × 10^-²⁵

Answer 1

The set of numbers arranged in descending order is:

B. 7 × 10^-³⁰, 7.2 × 10^-²⁵, 7.2 × 10^-³⁰, 7.6 × 10^-²⁵

Answer 2

In which set are the numbers arranged in ascending order?
A. 0.00125, 0.00225, 0.000325, 0.00325
B. 3.25 × 10^-³, 2.25 × 10^-³, 3.25 × 10^-⁴, 1.25 × 10^‐³
C. 3.25 × 10^-⁴, 1.25 × 10^-³, 2.25 × 10^-³, 3.25 × 10^-³
D. 0.000325, 0.00225, 0.00125, 0.00325

Answer 3

The set of numbers arranged in ascending order is:

D. 0.000325, 0.00225, 0.00125, 0.00325