What is the value of x

4

Step-by-step explanation:

Since the two triangles are similar, the ratio of 12 to 12+4=16 must be the same as 5x-2 to 6. You can therefore set up the following ratio:

Multiply both sides by 6x:

Subtract 4.5x from both sides:

Add 2 to both sides:

Multiply both sides by 2:

Hope this helps!

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58