It's a math riddle

"When I was 4 my brother was half my age, If I'm 18 now, how old is my brother?

Demonstrate the distributive property of mulptiplication over addition. a) 9*5=5*9 b) 9 * (5+7) + (9*7) c) 9 * (5+7) = (9*5) + (9*7) d) 1*9=9

Turn - x^2+5 into an ordered pair

Break apart 213 into hundreds tens and ones

Which number sentence shows the commutative property of addition? 7 + 6 = 13 7 + 6 = 6 + 7 7 + (4 + 6) = (7 + 4) + 6

Kim paid 3/7 of a bill, Sherri paid 35% of the bill, and Judy paid the rest. Which of the following statements is true? A. Kim paid the most. B. Sherri paid the most. C. Judy paid the most. D. They all paid the same amount.

A certain hybrid car can travel 1 4/11 times as far as a similar non hybrid car can, each on one gallon of gasoline. If the non hybrid car can travel 33 miles per gallon of gasoline how far can the hybrid travel on 4/5 gallon of gasoline?

What is the value of 6x+4x+8, when x=7

There are 46 runners in a race. how many ways can the runners finish first, second, and third

Which composition of transformations would be the inverse of rotating a figure 90° counterclockwise and then reflecting it over the x-axis?

At the city museum, child admission is $ 5.20 and adult admission is $ 9.40. On Monday, 148 tickets were sold for a total sales of $ 1051.00. How many child tickets were sold that day?