Given two generic variables, a with value "123" and b with value 456, what would the write line output of a + b be

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m