Answer:
-3
Step-by-step explanation:
-7b = 21
/ -7 / -7
b = -3
9/10 is equivalent to 90/100 and the answer under mine or above or the other answer should be reported. They got points for a question they did not answer correctly.
Step-by-step explanation:

Answer:
1
Step-by-step explanation:
Because it y is 0 then we can find the X intercepts. so there will be one X intercept.
Answer:
Step-by-step explanation: