Inline skates typically have wheels with a diameter of 47mm the wheels are manufactured so that the diameters vary from this value at most .1mm. Write and solve an absolute value equation to find the minimum and maximum diameters of the wheels

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of