Answer:
-3
Step-by-step explanation:
Answer:
about 3
Step-by-step explanation:
i think ..........................
138° + w° = 180° (sum of angle on a straight line)
w° = 180° - 138°
w = 42
19° + x° + w° = 90°
sub. in w=42,
19° + x° + 42° = 90°
x° = 90° - 19° - 42°
x° = 29°
x = 29
Answer: $20.30
Step-by-step explanation:
First we must find Mary's total.
3kg × $9.90/kg = $29.70
She gave the cashier $50. So we subtract the total from that to determine the amount of cash or change she should get back.
$50 - $29.70 = $20.30