If thaisha reads 3 pages, how many does her brother read?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

If you measured the width of a window in inches and then in feet with measurement would you have the greater number of units

Which has the greater energy, light of wavelength 519 nm or light with a frequency of 5.42 x 10^8 sec^-1?