Find the value of each expression when a = 3
b = 2
c = -5

1) 2a - c
2) 3a + c - 5
3) 2a + b + 4c
4) 5c

Please provide explanations so I understand! Thank you!

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2