Look at the bottom of the calculator. There is a button that looks like this (-). Press that button and then press the number you want to be negative and you have a negative number. It's not as hard as you think:)
It depends on the calculator; usually there's an "a b/c" button, which is activated when you press shift or a "2nd function" button on the calculator. However if this does not help, most calculators now have online instruction manuals. Just type the model and make into google.
make a variable true until you press the button. in step event for the object use a move twards point action and set "x" to "mouse_x" and "y" to "mouse_y"
u press the b button
press 4
To make a heart you press this button < then you press 3 and it forms a <3.
On all of the graphing calculators, they have the graphing things on it. First to make a graph, you need an equation. when you have the equation ready, you just press the button on the top left (for the most calculaters), the "y=" button. Then you will get a lot of empty lines for you to put the equations on. After you type all the equations, you will have to press the "graph button on the top right. then you will get a graph.
you press the button :0
There is no button on the formula bar, but there is an UNDO button on the menu bar. You also can press ESC to cancel your edit.
You press the button.
No.
Hold CTRL and Shift press the + or = button to make the font bigger, to make it smaller hold CTRL and Shift and press the - or _ button. Hopefully that helps :D