Answer:
90 cm, 180 cm, 240 cm
Step-by-step explanation:
Let the lengths of sides of the triangle be 3x, 6x and 8x

Hence, lengths of the sides of the triangle are 90 cm, 180 cm and 240 cm.
Answer:
Step-by-step explanation:
2x+(x)(3+x) multiple or foil the ()
2x+3x+x^2 combine like terms
5x+x^2 or x^2+5x
Answer:
£1.62
Step-by-step explanation:
add them all up then subtract 100 and forget about the negative sign