She has 15 left because she had 28 then she at 3 which is now 25 then she gave 5 away which is 20 then she gave 5 more away which is 15. So she ends up with 15
Answer:
Step-by-step explanation:
so we have (4a - 1)(2b + 3)
so we times 4a and 2b
8ab
then 4a times 3
8ab + 12a
then -1 times 2b
8ab + 12a - 2b
the -1 times 3
8ab + 12a - 2b - 3
Answer:
The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other.
Step-by-step explanation:
Answer:
-18
Step-by-step explanation:
-3 × 2 = -6
-6 × 3 = -18
The rectangles are similar. The difference between 7 and 8 is that the second one is dilated by 1/2