30 dollars
If she received 30 dollars in change then she paid with a 100 dollar bill
Answer:
i think y=3/4x-4.2
Step-by-step explanation:
Variables are the letters in the equation (like x and y)
Coefficients are the numbers before the variables. (like "6" in "6x")
Constants are the actual numbers (like "2" or "1")
Factors: Numbers that are multiplied together (like "5" and "6" in 5 * 6)
5) 4b + 6
Variable: b
Coefficient: 4
Constant: 6
6) 7x + 8h - 3
Variables: x, h
Coefficients: 7, 8
Constants: -3
7) 12 + 2a + 5b
Variables: a, b
Coefficients: 2, 5
Constants: 12
8) 5 + (7 * 8)
Factors: 7 and 8
Okay a,b,c don't make sense at all. but if I had to choose I'd go with A and B since the exact numbers are used
