Arock band has made souvenir t-shirts to sell at their concert and hopes to bring in at least $140 from the sale of the shirts. they make $4 for each adult t-shirt and $2 for every child t-shirt. i have to write a linear equation

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte

Use long division to indentify (12xto the second power+15x-8)divided by 3x

Calculate the mean value (expected value) of the following discrete variable x (10 points): x = 0, 1, 2, 3, 4, 5, 6 p(x) = 0.2, 0.2, 0.15, 0.15, 0.15, 0.1, 0.05