a chef plans to mix 100% vinegar with Italian dressing. the Italian dressing contain 12% vinegar. the chef wants to make 160 milliliters of a mixture that contains 23% vinegar. how much vinegar and how much Italian dressing should she use

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table