Mrs. roberts is 3 times as old as her son. the sum of thier ages is 48 years. how old was mrs. roberts when her son was vactions

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

Pls never taught i’m really confused and i rlly need