How do you use benchmark to estimate 2.81 + 3.72

Tommy's mom gave him $50 for cutting their grass. He used the money to buy a game for $15.75 and two snacks that cost $1.50 each. Tommy also bought a necklace for his mom.

A bag contains white marbles and green marbles, 62 in total. The number of white marbles is 3 less than 4 times the number of green marbles. How many white marbles are there?

Torri had $20 to buy a birthday present for ber dad. she decided to buya dvd for $18. the sales tax is 7%. does she have enough money? explain your reasoning.

The tennis team is creating one doubles team to play at its matches. There are 13 people on the tennis team. How many different ways can the two people on the doubles team be chosen?

Distribute the expression. 6 (3r2 - 4r + 7)

The equation of a line is x + 3y = 14. What is the y-intercept of the line? -14 14/3 14 314

What percent is equivalent to 1840? A. 18% B. 22% C. 40% D. 45%

Round 6.4 to the nearest whole number

If l || m, m< 7 = 5x - 4, and m< 14 = 8x - 11, calculate m< 16

Find the four arithmetic means between 40 and 10.