Complete the statement.-2(3+6) = _ - 12

A.
–6

B.
–3

C.
3

D.
6



Simplify the expression. -4 + 6 x(-1)


A.
–10

B.
–2

C.
2

D.
10



What is the value of the expression? 1/4 - (3/7) x (7/8)

A. -1/2

B. -1/8

C. 1/8

D. 1/2


What is the value of the expression? 5 + 3 x (-8)

A.
–64

B.
–19

C.
19

D.
64

Answer:

There would be 18 boys.

Step-by-step explanation:

If the ratio of boys to girls is 3:4 that means in a classroom of 7 people there would be 3 boys and 4 girls. So all you do is multiply 3 boys by 6 (18) and 4 girls by 6 (24) cuz 7*6=42 which means that there would be a total of 42 students with 18 boys and 24 girls.

Final answer:

The sale price of the suit is calculated by multiplying the original price by the percentage discount to find the amount of the discount, then subtracting that number from the original price. In this case, the suit is marked down by $60, and the sale price is $240.

Explanation:

This problem deals with calculating the sale price of an item after a percentage discount. To start with, you need to compute the amount of the discount first. The discount is 20% of the initial price, which means we multiply 0.20 (the decimal representation of 20%) by $300. That gives you $60.

Next, to find the sale price, you subtract the discount from the original price. That is $300 - $60 = $240. Thus, the sale price of the suit, after a 20% discount, is $240.

Learn more about Percentage Discount Calculation here:

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Answer:

$240

Step-by-step explanation:

$300 x .20 = $60

$300 - $60 = $240