Determine the flaws in the solution shown

Identify the law illustrated by:20x + 50 is the same as 50+20x

Simplify (1+tan^2y) (cos2y-1)

Which equation represents a function? A) x = 4y + 7 B) y2 = - 5x - 8 C) x2 + y2 = 16 D) y = ±2x + 3

A system of equations consists of y=x^3+5x+1 and y=x

If Ted runs at 8 mph write and equation to show how far ted runs in 15 min.

Students were asked how many pairs of shoes they owned. Their responses were 8, 2, 1, 5, 7, 6, 2, 2, 8, and 3. urs the The mean of the data is

Convert. 0123 to a percent

Joe's house is 5.5 km from the creek, the distance between Jane's house and the creek is twice as far as Joe's house how much further is Jane's house from the creek than Joe's house in meters metric

John had 84 dollars, and his brother Fred owed 12 dollars to his friend. John gave his brother some money. Fred paid his debt and now both of them has the same amount left. How much money did John give Fred?

True or false: dilations map angles of the same degrees