and cant seem to get my final figure right. Can anyone lend a hand please?

The 1st one is:
In a survey of 245 small to medium size hospitals, 45% said that they do not have enough radiologists. How many of these hospitals do have enough radiologists? Round to the nearest whole number.

and the 2nd is:
The average cost of 30 seconds of advertising during the super bowl 6 years ago was .3 million. If the increase in cost over the last 6 years has been 17%, find the average cost of 30 seconds of advertising during the super bowl this year. Round to the nearest tenth of a million.

This last problem I figured out but I wanted to check my answer.
The question is:
Telecommunications equipment maker Nortel Networks says it will lay off 4000 workers globally. If this amounts to 4% of its total workforce, how many worker will remain after the layoffs?

I am HORRIBLE with word problems. Anyone able to help???
I figured out all the rest but got stuck on those..

Thanks!

Filed under: Business Phone Systems