Use PEMDAS.
Parenthesis first.
(-15)-(-12)+3-(-9)
Next multiply,
(-15)+12+3+9 (two negatives get you a positive)
Finally, add and subtract:
-15+24=9
You get 9 as your answer.
Hope this helps!
There's 12 inches in 1 foot.
64 ÷ 12 = 5 with a remainder of 4
Suzanne is 5 foot 4 inches.
Hope this helps.
Answer:
-7
Step-by-step explanation:
1 because you replace x with 2 so, (2)squared -5x2 + 7 = 4 - 10 + 7 = 1