Earth has a surface area of 1.97 x 10 8 square miles.a new planet has a surface area 13 times?

Question

the surface area of earth what is the surface area of the new planet?help math question

Answer 1

do your own homework

Answer 2

13 x 1.97 x 10^8 (multiply 13 and 1.97)

25.61 x 10^8 (move decimal and add one exponent so scientific notation is correct)

2.561 x 10^9 or 2,561,000,000 square miles <===ANSWER

Answer 3

1.97 x 10^8 * 13 = 197000000 * 15 = 2955000000 = 2.955 x 10^9