If Isaiah drives for 8 hours, and drives 456 miles. How fast does he drive in miles per hour? (label is "miles per hour")

Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"