Verify sin4 x - sin2x = cos4x - cos2x is an identity

Avril has a budget for school stationary of $39, but has already spent $16.20 on books and folders. Let p represent the amount Avril can spend on other stationary. Solve for p.

Vera bought a new car in 2016. One year later, the car had depreciated in value by $2,300 and was worth $28,140. Find the value of her car when she purchased it in 2016

Whats the answer for Melanie swam 918 meters in 3days. if she swam the same distance each day, how far did melanie swim in one day

Circle the quadrilaterals that have all the attributes one rectangle? Trapezoid, parallogram, square, rhombus

A city of 100,000 people is growing at a rate of 5.2% per year. Assuming this growth rate remains constant, estimate the population of the city 5 years from now.

What is the word form for 5.921

What is 5 over 6 minus 1 over 4?

Write 15.1 as a fraction

A test has Multiple choice questions with 5 choices for each answer, only one answer is correct for each questionon student guesses the answer to each question.

Charlotte bought 16 songs. One fourth of the songs or pop songs. How many of the songs or pop songs?