Use substitution to solve the system of equations.
c+b=12
2b-3c=1 1/2

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

Find the value of x. round the length to the nearest tenth

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i