Abuilder bought a large number of bags of cement. as a result, he was given a discount of 7%. the
discount was $910. calculate how much the builder paid for the cement.
a.13 000
b.846.30
c. your own answer (explain)

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?

Find the distance between the pair of points a(-1,8) and b(-8,4)

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.