7. A DVD club sells DVDs for a flat price of $15 each to anyone. Alternatively, you can become a member by paying dues of $50, and purchase DVDs at a discounted price of $10. Use a linear system to
determine the number of DVDs bought that result in the same cost for either plan. Given the following
two equations C = 15x and C= 10x + 50.

please help I can't figure this out it's for a test ​

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.

the answer is 40.

proof:

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140