Help again i dont understand stuff like this

x=11

Step-by-step explanation:

First, we know that "supplementary" angles add up to 180 degrees. With this in mind, we can plug the values from your model into an equation:

(7x+33)+70=180

To solve this, first drop the parentheses because nothing is being distributed to the values inside them:

7x+33+70=180

Now we combine like terms, adding the 33 and the 70.

7x+103=180

Let's get rid of the 103 by subtracting it from both sides:

7x=77

Now we divide both sides by 7:

x=11

HTH :)

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: