In three math tests, you score 91, 95, and 85 points. how many pointe must you score on the fourth test to have andrew a average, or at least 90 points?

Annie walked her dog 2 1/4 miles from her house to the dog park and 3/7/8 miles around the park.then she walked the same distance home.how many miles did she walk in all?

Which math sentence can be used to determine if the triangle is a right triangle?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days