Rlly need help on this ill give brainliest :)

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Enter the missing numbers in the boxes to complete the table of equivalent ratios.time (min) distance (km)? 36 9? 1512 ?

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?