Find the 5th term in the expansion of (4x - y)^7 in simplest form.

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Abcd is a square. what is the measure of angle bac

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