Allyson Felix ran the fastest time of the year for the women's 400 meter dash.

Make a quick prediction: What was her time (in seconds) ?

It is $6.25 per mile. how much will it cost to travel 8.7 miles.

Goldbach's conjecture states every even number greater than 2 can be written as the sum of two prime numbers which sum for 30 supports this conjecture? A. 15+15 B. 12 + 18 C. 17 + 13 D. 2+28

Solve the rational equation 6/x + 7=-8/x

A new car dealer offered to sell his demonstrator model for 80% of the retail price. If the retail price is $30,863, how much did the customer save?

Is 8 out of 40 students pink pizzas for lunch today what percentage Pig pizza

How can the number 2,3,6, and 12 be used to get 1

2x+4=4x i need the individual steps

What is the simplify expression of 9a-4 (2a+5)

How many solutions does 3 (x+5) = -4x+8 have

Emlilio bought 5.65 pounds of green grapes and 3.07 pounds of red grapes. he divided the grapes equally into 16 bags. if each bag of grapes has the same weight, how much does each bag way?