1. 18 + 24 = 6 * (3 + ?) 2. 10 + 2 = ? (5 + 1) 3. 3 x (7 + ?) = 21+ 6 4. ? x (3 + 2) = 12 + 8 5. 30 + 28 = 2 * (15 + ?) Please give me the numbers for the question marks

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building