1. 2 + 5 = 5 + 2 exexmolifies which property?
2. 2*(7*5) = (2*7) * 5 exemplifies which property?
3. 2(x + y) = 2x + 2y exeemplifies whcih property?
4. 2z + 0 = 2z exemplifies which property?
5. 14*1 = 14 exempifies which property?
6. 13 + -13 = 0 exempifies which property?
7. 5* 1/5 = 1 ememplifies which property?
8. simplify 18a + 31b + 14a - 2b
9. simplify 14x - 2y + 21x + 7y
10. simplify 15r + 7s + 9r - 7s

Select the correct answer from each drop-down menu. rewrite the formula to find voltage. the formula for electrical power (p, in watts) is where v is the voltage in volts and r is the resistance in ohms. for a particular brand of water heater, r is 32 ohms and p is 0.5 watts. the formula to find v is , and the voltage at which the heater operates is volts.

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.