Answer:
75% bigger
Step-by-step explanation:
Let the first number be x and the second be y.
So:

And:
-----30% less than x
Substitute
in 




Cross multiply


Collect like terms


Make x the subject


So, the average is:




Rewrite as:

Express as percentage

This means that the average is 75% bigger than the second number
Answer:
Multiply it like a normal number.
Step-by-step explanation:
Take the point away in both numbers
line the numbers up and add the zero at the end of 28
multiply
add the decimal point back after solved (3 decimal points)
818
x280
-----------
Answer:
no because he is STUPlD
Step-by-step explanation:
Answer:
Slope: 3/5
y-intercept: 7
Step-by-step explanation:
A triangle is
A polygon with
3 angles(x2)
3 sides