1.
if m a = 45 and m b = 60 ， what is m c?
75
165
255
105

Based on the answers I would say that it is 105

This is assuming that C = A+ B ( 105 = 45 + 60), but i'm not certain because you didn't provide all the information needed.

Hope this helps! ;)

$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