<span>More please help me solve the problem
The stars have different brightness. The brightest stars are Grade 1 and the least degree luimnoase stars 6. The brightness of the stars shrinks 2.5 times with the passing from one grade to another. Whenever the stars are brighter Grade 1, Grade 6 than the stars?</span>
He will only need to sell one
C is the answer because 7+8= 15 and 7x8= 55
Slope for the function is -1/3.5.
12 - all divisible by it (2*12=24, 3*12=36, 12*5=60)