subtract 12a²+ 15ab-20b² from 15a²+10ab+8b² A.3a²-5ab+28b² B.3a²+5ab-28b² C.-3a²+5ab-28b² D.-3a²5ab+28b²​

Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. a daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of u grams. the expression 5(3d + 4t + v) describes the mass of 5 bouquets. match each amount in the situation with the expression that represents it. situation expression number of bouquets mass of one bouquet mass of the tulips in one bouquet 4t mass of the daffodils in one bouquet 3d + 4t + v

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9