The expression f - 3 represents the number of years mark has taken piano lessons when fatima has taken lessons for f years. how many years of lessons will mark have when fatima has 9 years? step-by-step

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Which expression can be used to find the cost of .75 kilogram of cheese at the price of $6.40 per kilogram?