Answer:
4.005 ( sorry i don't know what you mean round to the nearest penny)
Step-by-step explanation:
4.5 x 0.89 = 4.005
3x+x=180
x=45 is the right answer
Answer: c
Step-by-step explanation:
sampling variability is the difference between the measured value of the random sample and the mean age of the population
Y=1 because on each equation it needs 1 for it to be the answer