Which equations have one solution?

I NEED IT FAST

A) 1/3x+3=26+6/18x-23

B) x+3+3x=-3+4x+6

C) 2 (1/5+1/4x-2x=x-1

D) 4.3x+2.5-2.2x+2.2-2.1x=0

E) 2 (4x+3+2x=5 (2x+3)

F) 2/5x+10+3/5x=2x+5

What type of tone is NOT likely to be found in a soft news article? A. Inspirational B. Straightforward C. Emotional D. Fun

What is 500:4*30*90=

Estimate: 92% of 104

30 is 60% of what number

What is the simplest form for 33/100

There were 149 angelfish and goldfish in an aquarium. There were twice as many guppies as angelfish. After selling 35 goldfish, there are half as many goldfish as angelfish. How many fish are left in the aquarium?

Which statement can be concluded using the true statements? If a quadrilateral has 4 equal sides and 4 equal angles, then it is a square. If a figure is a square, then each of its angles must measure 90 degrees

Maxine works at an amusement park. She recorded the number of ice cream cones sold each day, along with the high temperature in fahrenheit degrees. Usinger her data, she wrote a linear regression equation of y=9x-487.

Running consumes about 720 calories per hour about how many are used if you run for 40 minutes

Convert 160 kilometers to miles (to the nearest tenth).