Answer:
63/8 or 7 7/8
Step-by-step explanation:
-3/2 * -5 1/4
Change the mixed number into an improper fraction
-3/2 * -21/4
Multiply straight across the numerators and denominators
63/8
$15 + x = $
jjj
Step-by-step explanation:jjjj
90
39+23+28=90
180-90=90