Answer:
10-x
Step-by-step explanation:
The total amount is made up of movies and music
total = movies + music
10 = x+ music
Subtract x from each side
10-x = x+music-x
10-x = music
() is for < and >
[] is for ≤ and ≥
(a,b) means from a to b, not including a or b
(a,b] means from a to b, not including a, but including b
so
x<-3
so from -3 to less of that or
from -∞ to -3
you can't equal -∞, so we use parnthasees
also, it is < so we use parnthaees
(-∞,-3)
4 is the highest number that goes into 12,28,and 36
12/4 = 3
28/4 = 7
36/4 = 9
so she can make 4 baskets....each containing 3 coloring books, 7 markers, and 9 crayons
100% - 70% = 30% or .30
$150 / .30 = $500
The original price of the golf clubs was $500