Plz ben bought a digital camera for $90. the tax rate is 6%. which proportion can be used to find the amount of tax ben will pay?
a.
x/90=6/100
b.
x/6=100/90
c.
6/x =90/100
d.
90/x=6/100

Which one is true about the hexagons ?

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?