My mother is 4 years younger than 3 times my brother's age. If my brother is 12 years old, how old is my mother?
Fill in the blank:
years old

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Layla answer 21 of the 25 questions on his history test correctly.what decimal represents the fraction of problem he answer incorrectly.

Aplane is flying at 32,500 feet. it needs to rise to 36,000 feet in two stages.• in stage 1, it rises 5% of its initial altitude of 32,500 feet.• in stage 2, it rises at a rate of 125 feet per minute.how many minutes does it take for the plane to rise during stage 2?