Answer:

Step-by-step explanation:
Let
represent the real numbers.
For the first part, all real numbers less than or equal to 9 in algebra is
.
For the second part, all real numbers greater than or equal to 7 in algebra is
.
To combine both inequalities, it would become
.
Hope this helped! If not, please let me know! <3
Answer:
42
Step-by-step explanation:
For the square 6 x 5 = 30
For the triangle 6 x 4 x 1/2 = 12
or 6 x 4 ÷ 2 = 12
add them both 12 + 30 = 42
About 5 books have been signed out, so they still have 4.
Answer:
supplementary angle is answer for your questions