Amy buys x cakes.
Bill buys 3 times as many cakes as Amy.
Corin buys 7 more cakes than Amy.
Each cake costs 61p
The total cost of the cakes is £56.12.
How many cakes did each person buy?

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?

Which of the following circles have their centers in the third quadrant?