Andy received $160 for his birthday this year. This was $30 less than one-half the amount he received last year. Which equation, when solved for x, gives the amount Andy received for his birthday last year?

$380

Step-by-step explanation:

He has received $160 this year and this amount is $30 less than 1/2 from last year

x × 1/2 - 30 = 160 + 30 and x/2 = 190 multiply both sides by 2

x = 380

s

step-by-step explanation:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.