Diane and mick are saving their money to build a tree house. duane adds $5 to their piggy bank every other week. mock adds $2 every week. so far they have saved $45.how many weeks have they been saving their money?

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"