A sample of 30 randomly
selected tomatoes are
picked. The diameter of
each is measured. The
mean diameter is 91mm.
The standard deviation is
8mm.
Assuming normal
distribution, calculate the
99% confidence interval?

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

If g^-1(x) is the inverse of g (x) which statement must be true

Find two numbers if their sum is 91 and the ratio is 6: 7?