The base of a triangle is twice its height. What is the measure of the base and height of the area is 8181 square yards

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?