Can somebody PLEASE help me, I need this done before 7:00 p. m, It's only 3 questions, I'll give you a thanks and full stars if it's very much correct, please I'm fr begging for someone to notice this. P. S
The image with the answer choices goes with question 18.

The answer to question 18 Is B; y is equal to 4 less than 3 times x

Step-by-step explanation:

Brute force may not be the best sollution in mathmatics, but it worked for this question.

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !