Answer:
B
Step-by-step explanation:
The GDP measures the market value of all goods and services produced in an economy (country or region) in a specific period of time. The GDP formula is:
GDP= Consumption (C)+ Investment (I)+ Government expenditure (G)+ (Exports - Imports) (Net exports)
Notice that if exports increase, GDP will increase too. Also, if investment increases GDP will increase. Notice that imports have a negative sign, then if they increase, GDP will decrease.
for an expression or relation to be a function, it must not have any x-coordinate values repeated, let's check this one

To get the reciprocal, simply flip the numerator and denominator. The reciprocal of 3/10 is 10/3.
Answer:
147
Step-by-step explanation:
2(X)= (X) x (X)
12 x 12 + 3= 144+3=147
Without the tip it was $60. If you are being asked to add the tip it will be $69