)is on the line y = 2x + 5. find the other half of the coordinate.

 The other half of the co-ordinate is 1.

Step-by-step explanation:  Let, 'a' be the other half of the co-ordinate (?, 7) that lies on the following straight line

So, the point (a, 7) lies on the given line. That is, the point (a, 7) will satisfy equation (i).

Substituting (x, y) = (a, 7) in equation (i), we have

Therefore, the value of 'a' is 1.

Thus, the other half of the co-ordinate is 1.

not sure but it may be b, as i said i'm not sure.

$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