Answer:
B..im pretty sure
Step-by-step explanation:
First it cant be D because 12 x __ = 64. There is no whole number multiplied by 12 that equals 64. So cross that out. then it's not B because 6 x ___ = 64. So also cross that out. the only thing u have left is 4 and 8. Then u can cross out A because the group of students has to be the same number of rows. Which is 8 x 8 aka B. The answer is B
15 + 7 + 9 + 7 + 4 + 4 + 3 + 3 = 52
Answer:
The answer is below
Step-by-step explanation:
Let Y represent the profit per day, and x represent the number of bar sold per day. Hence:
Y = 0.25x - 2
a) The mean is given as:

b) The standard deviation of y is:

Answer:
$2
Step by Step:
Four quarters is one dollar
Four quarters is 8 pennies
Multiply 8 by 25 (25 being the value of the quarters)
<em>2</em><em>5</em><em> </em><em>cents </em><em>is </em><em>times </em><em>four </em><em>is </em><em>one </em><em>dollar </em>
<em>.</em><em>2</em><em>5</em><em>x</em><em>4</em><em>=</em><em>1</em><em>,</em><em> </em><em>2</em><em>5</em><em>x</em><em>4</em><em>=</em><em>1</em><em>0</em><em>0</em><em>,</em><em> </em><em>1</em><em>0</em><em>0</em><em>x</em><em>.</em><em>2</em><em>5</em><em>=</em><em>2</em><em>5</em>
<em>2</em><em>x</em><em>4</em><em>=</em><em>8</em><em> </em><em>8</em><em>x</em><em>2</em><em>5</em><em>=</em><em>2</em><em>0</em><em>0</em>
Answer:
16
Step-by-step explanation:
Subtract the total he spent on bubblegum, from the total price spent on bubblegum and lollipops.
If you multiply the price for one piece of bubblegum by the quantity of bubblegum purchased, you will get the price for all the bubblegum, 0.50 * 5 = 2.50.
Subtract that from the total price “6.50” to get 4.00.
Then you can divide 4.00 by the lollipops price “0.25” to get the quantity of lollipops purchased, 4.00/0.25 = 16.