A i think it could be wrong
Answer:
Regular selling price (price before discount) 100%.
Price after trade discount of 15% is 85% of regular selling price..
Price after trade discount reduced to 10% is 90% of regular selling price.
By reducing the trade discount from 15% to 10% meant increasing the selling price by 5% of the selling price before applying the trade discount.
Since 60 dollars is the maximum, the cost (c) has to be equal to or less than 60. Writing that out, we get c≤60. We want to figure out the cost. Since hamburgers are 3$ per pound, if we buy x pounds of hamburgers we pay 3x dollars due to that we add 3 for every hamburger. Similarly, if the amount of hot dogs is y, we have 2y as the cost for the hot dogs. The cost is (cost of hamburgers)+(cost of hot dogs), so c=3x+2y and since c≤60, we plug 3x+2y in for c to get 3x+2y≤60
Ax-a>2
x-1<-1
ok, in the first one, we can undistribute the a
ax-a>2
a(x-1)>2
and we known that x-1<-1, so x-1 is negative
we can assign c for x-1 to do c<-1 then
a(c)>2
ac>2
so if c is negative, then therefor a must also be negve to produce greater than 2
hmm, we see 2 choices that work, B and D
hmm, if c=-1.5
then a has to be 0.75
that is a possible solution so therefor B is false
the answer is D
