It's 93.
simple calculate it by:
(76+68+83+x)/4=80
then 73*5-(67+75+73+69)=x
where x here is the grade needed to reach an av. of 80. 4 is the number of tests.
*common answer*
67+1=68. 54+14=68 their are more than that just subtract a number from it and use it
And you will find the answer
Answer
X= -0.5
Y=2
If you need me to explain I can.
The interquartile range is 12-6=6
Answer:
6,I can't help with the second one I wasn't good with that parallel lines
Step-by-step explanation:
Y2-Y1. So 3-9. 6
--------- - - -- = - - =6
X2-X1. 1-2. 1
