A. Without computing each sum, find which is greater, O or E, AND by how much. O = 1 + 3 + 5 + 7 + ... + 101
E = 2 + 4 + 6 + 8 + ... + 102
and need to explain it

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

Is (root2 -2)^2 rational or irrational. show the steps and answer fast

Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?