John has a gift card of $100. He spends $5 per day. Write an equation to show the amount left on the card after x days

y = 100 - 5x

Step-by-step explanation:

Total amount of gift card = $100

Amount spent per day = $5

Number of days = x days

Write an equation to show the amount left on the card after x days

y = 100 - 5x

Where,

y = amount left on the gift card

x = number of days

For example,

Assume x = 2 days

Amount left on the gift card, y

y = 100 - 5x

y = 100 - 5(2)

= 100 - 10

= 90

y =$90

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

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