Shannon bought 2 necklaces at $15.00 each. She received a third necklace at half-price. How much did Shannon spend?

$37.50

Step-by-step explanation:

2 necklaces for $15.00 = $30.00

Plus the $7.50  for the third necklace ($7.50 is half of $15 which is what each necklace costs)

Add it all together:

$30 + $7.50 = $37.50

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

i’m here for points.