If a, b,c, d are replaced by four different digits from 1 to 9, inclusive, then what's the largest possible value for a. bc + 0.d ? The other answers were completely off so im asking again. why does it say high school

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height