Me with geometry a proofs, due today, probably easy but i am so lost, i am not good at math !

Ily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. her work is shown below. 4(x – 1) – x = 3(x + 5) – 11 4x – 4 – x = 3x + 15 – 11 3x – 4 = 3x + 4 how can her partial solution be interpreted?

Which statements about these triangles is true

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar