How do I know if a question is true false or open

Multiply. Write your answer in simplest form. 3/8 x 5/7

If = +, than what is the value of m

How many right angles does a rectangle has and how do I know

Which equation represents x, the side length of the greater square? x2 + (x - 2) 2 = 10 x2 + 2x2 = 10 x2 + (x - 2) 2 = 100 x2 + 2x2 = 100

Vertex of the quadratic function y = - 2 (x+3) ^2+5

Nayaleh is raising money for her school by selling candy. The amount of money y that she needs to reach her sales goal depends on the number of bags x that she sells. This is represented by the equation y=100-5x.

What multiplies to be 42 and adds to be 23?

I don't understand how to do this. what is 7 + 9p + 2?

5 less than a number is 18. What is the number?

Sammy eats 1/2 of the box Tikki eats 1/8 of the box Georgia eats 1/4 of the box What fraction of a whole box do all three cats eat in all each day? Explain the solution using words, numbers, and or models?