Thu is five years older than her older brother Tuan. The sum of their ages is 51. What are their ages?

You can buy 5 cans for green beans at the village market for $3.40. You can buy ten of the same can of beans at sam's club for $4.30. Which place is the better buy? Show and explain your work.

Write an expression to represent twice the difference between a number and 9

Which graph represents a line with a slope of - 2/3 and a y-intercept equal to that of the line y = 2/3 x - 2?

Which amounts from part of the total cost of a mortgage? A. Monthly interest, down payment and mortgage tax B. Closing cost, starting deposits and down payment C. Closing costs, down payment, and monthly loan payments

6. What is 30% of 70? Show your work.

Find the value of x when the area of a triangle is 22 in2 and has a base of 3x-1 and height of x.

Which relation is a function? A. (6, 5), (1, 1), (6, 4) B. (0, 1), (2, 3), (2, 5) C. (8, - 2), (-2, 5), (6, 0) D. (-2, 3), (-5, 9), (-5, 3)

Given tanx = 7/24. What is csc X

the population of the US was 282 million in the year 2000. and 309 million in the year 2010. assuming that the US population follows the model of uninhibited population growth, what will the population be in the year 2050?

X+5/5=x+9/7 x equals?