What expression would give the number of ways to choose a group of 7 from a group of 15?

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Astudent has created the give circuit diagram. it consists of a battery, a resistor, and a light bulb. in one minute, 1.2c of charge flows through the resistor. how much charge flows through the light bulb in one minute?