Hailey just had lunch at the sushi palace, and she wants to leave an 18% tip. she writes the expression b + 0.18b to compute her bill with a tip, where b is her bill before the tip.

which expression is equivalent to hailey's expression?
a) 1.18b
b) 0.18(2b)
c) 1.18(2b)
d) 2(1.18b)

A) 1.18b

Step-by-step explanation:

Hailey writes the expression to compute her bill with a tip, where b is her bill before the tip.

Use dictributive property:

In the expression we can write b before brackets:

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!