7.5+k=10 7.5+k-7.5=10-7.5 step 1 k=2.5 step 2 find her mistake
a: step 1
b: step 2
c: no mistake

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. monthly temperatures: 63 degrees upper f comma 67 degrees upper f comma 71 degrees upper f comma 75 degrees upper f comma and 79 degrees upper fmonthly temperatures: 63° f, 67° f, 71° f, 75° f, and 79° f