Samantha’s initial grade is 88. Her final grade is 95. Find the percent change in her grade.

The initial price of a water bottle is $1.55. Find the price after a 7% tax and 18% discount.

Solve for the following values: sin30 cos 30 sin 45 cos 330 cos 300 sin 225 cos 210 sin 240 cos 135 sin 150 cos 180 sin 270

Find the area of an equilateral triangle with side length of 10.

A circle graph has 5 categories, each representing the favorite colors of a group of students. 16 prefer purple, 12 prefer blue, 9 prefer green, 18 prefer pink, and 10 prefer orange. Find the central angle for the color blue.

Find the equation of a circle with endpoints (5,8) and (-4,9).