Answer: She bought 68 books.
Step-by-step explanation:
Subtract 31 from 99 to find the difference! The difference tells us how many books she bought at the yard sale.
Since both y’s are negative you can combine them to make -6y=1 then you divide -6 on each Side to get y=6
Step-by-step explanation:
(3X-20)+(3X+5)=111(( SINCE 111 IS TOTAL ANGLE
6X-15=111
6X=126
X=21
EFG=3×21-20
=63-20=43
Quarts = 25 there are 100 in a dollar so you have 25 out of 100
25/100<span />