Am i right? can somebody plz check this for me
the following image is a visual description of which of the stem discoveries provided in this lesson?

c is my answer

a.) black hole
b.) blissymbol
c.) pythagorean theorem
d.) theory of evolution

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?