3r (t+4) if r=2 and t=7

You have a stack of pennies without counting the pennies, how can you know if there is a odd or even number of them

On a biology test, a student got 25 questions correct but did not pass. on a second attempt, the student got 36 questions correct. what was the percent of increase?

Write 6x100,000+4x10,000+3x1,000+6x100+7x1 in base-ten numeral form and number name form

Johanna started her new job for apple incorporated. She gets paid $21 per hour and received a $250 signing bonus. Her first check including the bonus was $1,132. How many hours did Johanna work?

Question 11 - (3 marks available) I think of a number, double it, and add eleven. I get twenty five. a) Using the statement above, form an equation. Use the letter 'X' for the unknown number. b) Solve the equation.

If a truck goes 30 kilometers in 30 mins what is it's average speed?

Property of 53*6 = 6*53

Simplify completely. (c^6/c^2) 5 Enter your answer in the box.

Seth watched 14 episodes of his favorite TV show in 10.5 hours He spent the same amount of time watching each episode. What is the unit rate of hours to episodes?

Factorise x squared + 10x+16