Answer:
Step-by-step explanation:
<u>Given system:</u>
<u>Multiply the first equation by 7 and add up the equations:</u>
- -7x + 7y + 7x + 3y = 7*8 - 16
- 10y = 40
- y = 4
<u>Find y:</u>
Answer:
False
Step-by-step explanation:
Answer:
<em>12 m 2600 mm</em>
Step-by-step explanation:
3 m × 4 = 12 m
650 mm × 4 = 2600 mm
Hope this helps!
D, because we already know how much he spent in total so it isnt B, trust me its D