Estimate the sum of 381 and 22 by rounding both values to the nearest ten. What is the best estimate of the sum?

400

410

420

430

A Girl Scout is selling cookies. She currently has 3 boxes of Thin Mints, 4 boxes of Tag-Alongs, and 5 boxes of Somoas left. What is the probability that a customer will randomly buy two of the same box of cookie to purchase?

Having trbl doing equations.

Write a program that calculates how many days it takes to accumulate at least $1,000,000 if someone deposits one penny on the first day, two pennies the second day, four pennies on the third day and continues to double each day.

Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per day (rounded to the nearest hour): Number of hours in school per day 4 5 6 7 8 Sample A: Number of students 70 100 125 135

One month, Ruby worked 8 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 112 hours. Find the number of hours each person worked.

Quadratic equation whose roots are 6 and 4, and whose leading coefficient is 5.

How many numbers less than 1000 are divisible by 7?

What shape has 4 equal sides. and sometimes has 4 right angles

Together, selina and pam have 132 stamps. selina's collection has 34 more stamps than pams collection how many stamps does pam have

This morning, Bobby had $50 in his wallet. Then he got $40 in babysitting money. Which integer represents how much money is in Bobby's wallet now?