Which description represents the expression 3x + 4 ?

the sum of 3 times a number and 4

4 added to 3 plus a number

4 divided by the product of 3 and a number

4 less than 3 times a number

first option

Step-by-step explanation:

To know this, let's begin with discarting options.

The expression is 3x + 4

This expression means that you have 3 times a number and then you add 4 to that number.

According to this, the second option states that to the number 4 you add the 3, in other words 4 + 3 and then a number. This cannot be the correct option.

The third option states a division, but we don't have in the expression any division, so, this is not the option.

The fourth option is the same as the second option with the difference that instead of adding you do a substract, which is not the case.

So with this we can conclude that the correct option is the first one, sum 3 times a number with 4.

im guesing 0 represents the like before you raise the height

the height of the slide is 10 feet higher then 0 because its off of the ground 10 feet

Step-by-step explanation:

Kayla should mark the level 3 whole tick marks to the left of the zero on the number line.  

This would mean the number is negative, for it is on the left of the zero. Another way to say this could be that the absolute value of -3 is three, for it is three whole tick marks from the zero.