240 drops. you take 8x1/8=1ml so you have 8 8ths times 30 to give you 240 drops for 30ml test tube
3 with a little 3 in the top right corner because your are multiplying 3 times
The equation is saying that -3x+10=5x-8. Once you get all the same terms on one side, you get 18=8x. That would end up being a decimal number, instead of a whole number. The x values would either have to be -4x or 6x in order to make the problem equal
circumference = pi*d
70cm*pi = 219.8cm
219.8cm × 240 rev = 52752 cm
52752cm/100 = 528m
640 x 0.30= 192
640-192= 448
448 is the answer
