If a whole number is divisible both by 6 and by 2 is it necessarily divisible by 12

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Yuto solved the equation below. what is the solution to yuto’s equation?