A bag contains red, blue, and green marbles in the ratio of 7:6:8. If the bag contains 147 marbles, how many red marbles are there?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.2. (round your answers to four decimal places.

Six more than a number equals two times the sum of one-half the number plus three. Is this statement true for only one number, all numbers, or for no numbers

The class with eggs to find the area of a circle with the diameter of 2 centimeter Brandy solve the problem showing all her work explain and find the error brandy made A=§r2 (the usual sigh didnt have it) A=3.14*12square2 A=452.2cm2

It takes Kayla 12 minutes to walk from her house to her grandparents' house. She walks to and from their house twice a week. About how many minutes each week does Kayla spend walking between the two houses?

What in the circumference of circle p if p is in the middle of A& B and AB=14 its a circle

Which expression is equivalent to q+p+q+p+q

Which ordered pairs are a solution to the equation y=x-3? (choose all that apply.) bracket (9, - 18) bracket (2, - 1) bracket (9, 6) bracket (1, 18) bracket (1, - 7) bracket (5, - 14) ?

What is the equation to mc2 aka mc square

True or false? 12-x=x-12 (for all values of x)

Olivia has $220 to buy presents for her 3 sisters and 2 nephews. She wants to spend $10 more on each sister than she spends on each nephew.