So there are 15 food booths and 20 game booths. Food booths cost 100 dollars. Game booths cost 50.
100 * 15 = 1500
50 * 20 = 1000
And 5 dollars extra for a day, and 7 dollars extra for a day. Multiply by how many days (d).
7 * d = 7d.
5 * d = 5d.
This means that the expression is:
1500 + 5d + 50 + 7d.
1550 + 12d.
Jed's bank account balance yesterday = -$26.34
Jed's account balance now = $42.18
So Jed's balance has recovered from a negative balance to a positive balance. Now it is required to find the amount of money jed deposited to reach this state.
Let us assume that money deposited by Jed = X
Then
X -26.34 = 42.18
X = 42.18 + 26.34
= 68.52
So Jed deposited $68.52 in his account.
There is this website called calculatorsoup.com its for any math problems you have and it shows the work.
Slope = (y2-y1)/(x2-x1) = (2-0)/(12-4) = 2/8 = 1/4