Help PLEAQSE$E$ i am gonna cry

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Agroup of randomly selected members of the foodies food club were asked to pick their favorite type of food. the bar graph below shows the results of the survey. there are 244 members in the foodies.

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project