52 tests because you would multiply 28 by 100 then divide by 54. You would get 51.851, but you cannot have and 8th of a test, so you would round up
From 145 pounds to 132 pounds
145 - 132 = 13
13 pounds
Check:-
132 + 13 = 145
Correct!
13 pounds
-2x³ + 3 = -x³ - x² + x + 1
Add x³ to both sides, and subtract 3 from both sides.
-2x³ + x³ = -x² + x + 1 - 3
Add like terms.
-x³ = -x²+ x - 2
Move all of the (X's) to both sides, by adding x² to both sides, and subtracting x form both sides.
-x³ + x² - x = -2
~Hope I helped!~
We know there are a total of 36 marbles. We also know 24 out of 36 are black and 12 out of 36 are blue. A ratio is pretty much a division problem... The problem wants the 24 black marbles over the 12 blue marbles. So, 24/12 = 2/1. Now, what this means is that for every 2 black marbles, there is one 1 blue marble. Good luck!
Answer:
AN = 16 units
Step-by-step explanation:
So we can use the fact that 
- Since this is an isosceles triangle, segments FO and FR are both equal to 7
Manipulating the equation above to solve for AN we have 
- Substituting in the known values we have
