Wat is 7x² + 4x - 5= 0
2 answers:
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The first choice gives you the same result. The factor of 5 can be removed to the outside of the summation symbol.
Answer:
12 weeks
Step-by-step explanation:
If John is aiming to save $100, with $6 a week and he has already saved $28. The leftover amount to be saved is $100 - $28 = $72
In one week → $6
2 weeks → $12
3 weeks → $18
and so on..
John will need 12 more weeks to save a total of $100.