How many neutrons does element X have if its atomic number is 22 and its mass number is 73? Your Answer:

Syria has the 5 apps on her phone wich is 3 less than twice the amount the Khary has. How many apps does Khary have?

Which algebraic expression is equivalent to the expression below? 12 (9 + 7x) + 22 A. 84x - 130 B. 84x + 86 C. 7x + 130 D. 84x + 130

Simplify x^3 y ^4 / 3y^4

Joanie tossed a nickel 30 times. She tallied 18 heads and 12 tails. a) What is the experimental probability the next toss will be a tail? b) What is the experimental probability the next toss will be a heads?

Here is a sequence 5, 10, 20, 40, 80 What is the term-to-term rule of the sequence?

X-intercept of the line whose equation is 8x+2y=4

If 400 reduced by two times my present age is 296, how old am I now?

Describe how to decide 64 is a prime number or composite number

What is the perimeter of a rectangle with a. Length of 13 feet and a width of 9 feet

What is 4,278,649 rounded to the nearest 100