first find the common denominator. which is 40 so the fractions become 8/40 5/40 4/40. add them up and u get 17/40. then subtract 17/40 from 40/40 and you get 23/40 and thats your fraction. then divide 23 by 40 and you get 57.5% and thats your percent.
i gess 30 but im not sure
u divide 6 by 5 or multiply both numbers in the fraction by the same number
dwarf i think
do distance divided by time
what are the formulas for speed, distance, and acceleration for 8th grade science
on the first subtract 8h from both sides, then divide both sides by 2 and you get h=3. on the second subtract 3x from both sides, then subtract 2 from both sides then divide both sides by 3 and you get -2/3.
divide both sides by 1.5 and you get 8x=200 then divide by 8 on both sides.