Amina sees a discount of 5% on a laptop. she can calculate the amount
she has to pay for the laptop using the expression b – 5/100 b, where b is
the price of the laptop before the discount. if the price after discount is $494, which number from the set {500, 505, 510, 520, 525} is the value of b?

The value of b is 520.

Step-by-step explanation:

Here, b represents the price of the laptop,

Since, discount percentage = 5 %,

So, the discount = 5% of b =

Thus, the price of laptop after discount = Original price of laptop - Discount

According to the question,

Hence, the value of b is 520.

answer4 to the second power is 16

and 4 to the third power is 64,

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3