Chad creates a solar system model in his science class. the model sits on a 7 and 3/4 pound board. the entire model. including the board weighs 12 and 1/2 pounds how many pounds does chad solar system model weigh?

i will mark !

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither