It is first option salt water is it?
The second option is your answer.
I can tell because any number to the power of 0 is equal to 1. So 2⁰ = 1.
The only one with a first term of 1 is the second option.
4(3) + 2(3-2)
4(3) + 2(1)
64 + 2
the answer is 66
Answer:
<span>a=15</span>
Explanation:
<span>5a−10b=45</span> , when <span>b=3</span>
Substitute the value of b into the equation.
<span>5a−10<span>(3)</span>=45</span>
Solve for a.
<span>5a−10<span>(3)</span>=45</span>
<span>5a−30=45</span>
<span>5a=75</span>
<span>a=<span>15</span></span>
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