The product of twin consecutive integers is 420. an equation is written in standard form to solve for the smaller integer by factoring

Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9

The anwser cause i do not understand just plez

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.