What is the value of : -4/5(-3/8) % -9/20?

a.-2/3
b.-27/200
c.27/100
d .2/3

Multiply. −2x(6 x 4 −7 x 2 +x−5) express the answer in standard form. enter your answer in the box.

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Can someone me with this problem i don't understand i need