OpenStudy (anonymous):

Write a mathematical expression for: the sum of twice a number n and 20. A. the fraction n over 2 then plus 20 B. 2n + 20 C. 2n minus 20 D. n + 2 times 20

4 years ago
jigglypuff314 (jigglypuff314):

"twice a number n" is like saying "2 times n" = 2n "sum" means adding so the sum of 2n and 20 is 2n plus 20

4 years ago
OpenStudy (anonymous):

thanks i really appreciate it

4 years ago
jigglypuff314 (jigglypuff314):

you're welcome :) glad I could help

4 years ago