Abox of 7 items costs $20.73 find the cost of each item

Write the fraction or mixed number and the decimal shown by the model

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.