Erica has $2.75. she has all dimes and quarters. she has 4 more quarters than dimes. which coins does she have?

What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of