There are 15 cards numbered 1 through 15. what is the probability that you choose a 5 or a 9?

a) 1/225
b) 1/15
c) 2/15
d) 14/15

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?

Explain how you can show five less than a number using an algebraic expression