Answer:
13 driveways with a quarter of an hour to spare
Step-by-step explanation:
142.
You can get this by seeing what number you have to multiply 7 by to get as close to 1000 as you can. 7*142 = 994. Thus each one of the multiplications up to that point will give you a positive integer than can be divided by 7. <span />
Answer:
55, 121
Step-by-step explanation:
2*2 =4
22*2=44
but 4 is not the number we need and 4 is one less so we divide 22 by 2 and get 11 so 44+11=55
thats the first box.
The second box is 55*2+11 which is 121
55:is the first box
121 is the second empty box
Answer:
2.31
Step-by-step explanation:
A z-score tells us how many standard deviations above or below the mean a value is.
A z-score of 2.31 means that the score is 2.31 standard deviations above the mean. If the score were negative, it would be below the mean.
