x= 5 x z= 3 = 15 (4y - 2z) = 60 - -30 = 30 so its C
Answer:
3 times
Step-by-step explanation:
heaviest : 9/10 kg.. 0.9kg
lightest : 3/10 kg.... 0.3kg
0.3/0.9 = 1/3
4
-2 + 6 = 4
$315
1.75 x 100 = $175
3.50 x 40 =$140
175 + 140 = $315
