Combine the like terms to create an equivalent expression:
- k + 3k

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review

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

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?