Answer:
6. Because to decrease = number × 100-% over 100(as a fraction)
which is =39.99 ×100-30% over 100
= 39.99 × 70/100
=27.993
After you take your answer from the decrease and subtract from the original price which is 39.99
39.99-27.993 *note the 39.99 has a zero at the end
the answer = 11.997 Rounded off it becomes 12
5+2 = 7
Add 5 more (1 more magazine) and the total amount equals 12
So.. bought 2 erasers
A 190,900
(after the comma there is a 9 which makes it one hundred ninety thousand nine hundred 900 is greater than 90)
6.a
7.c
8.d
9.c
10.c
Hope I helped BTW these are 100% correct good luckk:-)
