Sive up Annette is standing with a tree directly between her and a building. She stands so
that, in her eyes, the top of the tree appears to "touch" the top of the building. If the
distance between her and the tree 30 ft, the distance between the tree and the
building is 15 ft, and the tree is 20 ft tall, how tall is the building? (You may ignore
her height.)

i not know

step-by-step explanation:

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w