Step-by-step explanation:
︻╦デ╤━╼︻╦デ╤━╼︻╦デ╤━╼︻╦デ╤━╼︻╦デ╤━╼︻╦デ╤━╼︻╦デ╤━╼
Answer:(b). 4I2-81
Step-by-step explanation:(2I+9)(2I-9)
=4I2-18I+18I-81
=4I2-81
2.5 is the answer to 10 divided by 4, which is the same as 4 multiplied by (a) equals 10. And (a) stands for ur answer, 2.5.
Answer:
89percent
Step-by-step explanation:
i am not good at math but what ever
