2(2) + 3(3) =
4 + 9 = 13
I don't know what 90p means but basically, u have to multiply that by 3 and add it to our current total which is 13.
Then, u substract the total cost from the 20 and you should get the change.
Multiply $1.99 by 4 for the drinks . Then $1.20 by 4 for the muffins . Add both of the amounts from the drinks and muffins with the tip of $2.30 . Then subtract $30 from the other total . Then you have your answer .
This is subtraction an the answer would be 6
To answer this question, you will represent the amount of yards rushed by each running back.
x - Running back #1
9x - Running back #2
The combined yards was 1550, so put these together in an addition equation with a total of 1550. Solve for x.
x + 9x = 1550
10x = 1550
x = 155
Running back #1 rushed 155 yards, and running back #2 rushed for 1395 yards.
Shorter leg = x
Longer leg = x +1
Length of the hypotenuse: 5 m
We can use the pythagorean theorem with the information given. Doing so, we have:

So, the answers would be:
Shorter leg = 3 m
Longer leg = 4 m
Length of the hypotenuse: 5 m