4b+3=11, the best first step is to apply the Division Property of Equality. would this be true or false and why

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?