franco read 3 over 8 of a chapter of his history book in 1 over 5 of an hour. at this rate, how many chapters of his history book can he read in 1 hour?

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?