please help me solve these problems every steps

a rectangle is three less than twice as long as it is wide. what are the length and the width if its perimeter is 42 inches?

a)15, 27 inches

b) 13,23 inches

c) 16, 8 inches

d) 13, 8 inches

if x is the first of three consecutive integers and the sum of the second and third is 208 then which of the following can be used to solve for x?

a) x+(x+2)+(x+4=208

b)2x+3=208

c)3x+3=208

d)2x+2=208

which is factor of: 5x^2 +27x+10

a) (5x+3)

b) (x+5)

c) (3x+5)

d) ( x+10)