Identify and calculate formulas and examples...
Hope this helps ;)
Answer:
area of the trapezoid=1/2(7+12)×5
=47.5cm
3 GBs per month because you have to take 30-21 (the monthly cost of the phone)=9 and each GB is $3 a month so 9 divided by 3= 3
You need to multiply 25 by 8 so the answer well be 200
Answer:
There are 21 ways to choose the first person, 20 ways to choose the second, 19 ways for the third and 18 ways for the fourth so the answer is 21 * 20 * 19 * 18 = 143640.
