Which weights are within 2 standard deviations of the mean? check all that apply. 8.4 lbs 8.9 lbs 9.5 lbs 9.8 lbs 10.4 lbs 10.9 lbs

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove