Which expression is equivalent to 10/21

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

What are the values of each variable in the diagram below?