Evaluate when a=3 and b=6

(a+b) - 4a + 3b

Last year, Jina had 30,000 to invest. She invested some of it in an account that paid 9%simple interest per year, and she invested the rest in an account that paid 5% simple interest per year.

Sabrina calculates the cost of a book as $50 the actual price was $56 what is Sabrina's percent error

1) Ellie is an African elephant. When she was born, she weighed about 200 pounds. As an adult, she weighs 7 tons! How many pounds did Ellie gain over her lifetime?

Whats 8 (3x+4) + 14?

Complete the equation so that it has solutions of - 5 and 7

John Marko buys a car $11,400.00. In three years the car depreciates 48% in value. How much is the car worth in three yoears?

T+7/5 = - 4 What does t=

Where are the asymptotes for the following function located? f (x) = StartFraction 7 Over x squared minus 2 x minus 24 EndFraction x = - 4 and x = 6 x = - 4 and x = 7 x = 4 and x = - 6 x = 6 and x = 7

Today there are 3,659 thousand elementary and secondary teachers employed in a certain country. this number is expected to increase to 3,856 thousand by next decade. what is the percent increase?

For babysitting, Nicole charges a flat fee of $3, plus $10 per hour. Write an equation for the cost, C, after h hours of babysitting.