Can anyone help me with this?

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it