Which expression is equivalent to x^2

+ 4x^2 - 45?

Write the equations of teh circle in standard form

The sum of 4 times a number and - 7, added to 5 times the number

Which equation can be used to solve for m<1

a circle has a circumference of 20. It has an arc of length 9/2. What is the central angle of the arc in degrees?

Is 8542 a even number

Which expression has a value less than the given expression when x = 5? 3x + 15 2x² x² + 5 3 (x + 5) 4x + 5

find the width of the pathway if a garden measuring 15 meters by 18 meters is to have a pedestrian pathway installed all around it, increasing the total area to 360 square meters

How much will a person pay for 10.8 pounds of bananas at a price of $2.22 per pound

A mans weekly wage was £336 but now he earns £420. what is the percentage change

Y=|x-3|+|x+2|-|x-5|, if 3