Help me with this plz.

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168

it is 10.6 according to my calculations

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative