Answer:
7x+1
Step-by-step explanation:
When you look at the expression(3x+2+4x-1), you will notice that some have variables while some are just regular numbers.
First, focus on the variables. 3x and +4x. In the expression, you will have to add it so 3x+4x will be 7x. Now, keep 7x on the side and switch to the numbers.
Next, focus on the numbers. 2 and -1. All you have to do is combine them which will be 2-1 which also equals 1.
Finally, return 7x with 1 which will be 7x+1. The reason you add a + sign instead of a - sign is because you got positive 1, not negative 1.
Your answer is 7x+1.
Answer:
45 ways
Step-by-step explanation:
Total number of kids = 10
We have to select the 2 kids
So the number ways to select two kids 
We know that 
So 
So there are 45 ways to select 2 competitors
98.5 multiplied by 13 would be either 1,280.5 or 1,281 depending on where you are expected to round the number to.
Just use a simple way by adding the gas used and left to get 13.5 gallons which is 3/4 tank than divide that by 3 which is 4.5 so 4.5 is a 1/4 tank and times that by 4 the Answer is 18 gallons
Answer: $360.54
Step-by-step explanation:
Before Tax Price: $4,006.00
Sale Tax: 9.00% or $360.54
After Tax Price: $4,366.54
