Answer:
B, D
Step-by-step explanation:
Solve all equations:
A.

This is false equality, so this equation has no solutions.
B.

This equality is true for all values of x, so this equation has infinitely many solutions.
C.

This equation has the unique solution.
D.

This equality is true for all values of x, so this equation has infinitely many solutions.
E.

This equation has the unique solution.
Answer:
25 percent
Step-by-step explanation:
60*.25 is 15
60-15 is 45. it is 15 dollars off or 25 percent off
Answer:
24%
Step-by-step explanation:
percentage change = change/original x 100
120-97 = 23
23/97 x 100 = 24%
Answer:
480 ft
Step-by-step explanation:
1 ft = 12 in, so 3in : 6ft would be 3in : 72in, which can be simplified to 1in : 24in. then you use the scale to find the lengths. 8in: (24·8)in. 24 · 8 = 192. to convert to feet, do 192/12=16ft. for the width, do the same thing. 15in: (24·15)in. 24·15=360. 360/12=30ft. For area, multiply the length and width. 16·30=480ft.
3888 I think
3^5*2^4
I guess maybe it's correct....
it can be wrong tho