1. x^2+x-6
2. x^2-8x-48
3. x^2+7x+12
4. x^2+13x+42
5. x^2+17x+72
6. x^2-25
7. x^2-9
8. x^2+20x+100
9. x^2+10x-24
10. x^2+x-12
If she is selling 50 loaves of bread each day for $0.65 per loaf, that is $32.50 a day.
If it goes up $0.05 then she would make $35 a day but she would sell 2 fewer so then she would make $33.60. Every $0.05 cents added, 2 fewer loaves will be sold. to get the maximum profit, the price would be at
0.95 cents per loaf because 0.95 x 38 =36.1
0.95 CENTS PER LOAF
I assume that you mean: the length is 7cm more than the width, and the perimeter is 74 cm.
If so, we can write down the following system, where l and w represent, respectively, the length and the width:

We can easily solve the second equation:

And finally solve for the length:
