A. -1/4 + 2/3= B. 1/2-3/5-1/2=

C. 3/4 of 2/9=

D. 2/5 of 7/12=

please help me
with explanation as well ​

17 in long 1.3 ft wide and 8in high what is the volume

Nikolas calculated the volume of the prism. his work is shown below.

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000