Which could be the measures of the three angles of an acute triangle.
a. 40, 90, 50
b. 45, 45, 90
c. 25, 25, 130
d. 70, 80, 30

Can someone show me the steps to solve the problem?

What term makes it inconsistent y=2x - 4 ?

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?