Aschool has 97 students. twelve of those students moved away. karen simplified the expression 97 − 12 to find the number of students left at the school. caleb solved it in a different way, but found the correct answer. what expression did he use? 97 + 12 97 + (−12) −97 + 12 −97 + (−12)

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.

How can (square root of 25) ^2 be rewritten?

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°