Please help me on these 6 questions about proportions (fill in the black) HELP

1. 6

2. 800

3. 10

4. 120

5. 3.5

6. 9

Step-by-step explanation:

I like to cross multiply for these type of problems.

I will show an example:

x/15=2/5 you multiply the opposite terms so 5x=30 then solve so x=6

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

my acc plz

step-by-step explanation: