Make a the subject

10a + 9 = 2b + 4

can someone provide an explanation for this?

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

The cost for an uberi is $2.50 plus $2.00 mile. if the total for the uber ride was $32.50, how many miles did the customer travel?