3a plus 7. you group the whole numbers together and than the a's. so 3+4 is 7. 2a + a is 3a.
Answer:
If each book cost $20.45 then you times it by 21 and the answer you would get is 429.45
Step-by-step explanation:
im 99% that its correct
<span>You are given
John Davis’ rate which is $9.75 an hour. It is said that he works for four
hours on Monday, six hours on Tuesday, five hours on Wednesday, five hours on
Thursday, and seven hours on Friday. You are asked to find the gross pay of John
Davis. All you need to do is to multiply the rate to the hour of work.</span>
<span>
Monday: $9.75(4h)
= $39</span>
Tuesday:
$9.75(6h) = $58.5
Wednesday:
$9.75(5h) = $48.75
Thursday:
$9.75(5h) = $48.75
Friday:
$9.75(7h) = $68.25
<span>
To get the
gross pay, add everything and you will get $263.25. The answer is letter D.</span>
Any multipule of 5 ends with either a 0 or a 5
so we see that ther are no 0's in the list so it must end with 5
so the other 2 digits can be any number
wait, less than 600
so the first digit can be 1 or 3
some possible numbers are
135
175
195
315
375
395
those are the possible numbers
Perimeter of the triangle, a+b+c
In this case, a=b=c=28
So, perimeter would be 28*3 = 84 cm
