Algebra I

Circles

300

The circumference of a circle is 20pi meters.
What is the radius?

10 meters

400

The diameter of Mr. Johnston's semi-circle swimming pool is 32 feet. What is the area of the pool?

128pi ft^2

500

The circumference of a circle is 10pi meters.
What is the area?

25pi m^2

Percentages

300

Thirty percent of what number is 123?

410

400

What number is 160% of 160?

256

500

2.5% of what number is 12?

480

GCF and LCM

300

Find the LCM of 8x³yz⁴ and 12x²y³z

24x^3y^3z^4

400

Factor the GCF of 6x³y⁴z⁵+15x²y³z⁴

3x^2y^3z^4(2xyz+5)

500

Factor the GCF of 9x²yz³-12x³y²z+15xy³z²

3xyz(3xz^2-4x^2y+5y^2z)

Why are there letters in my math?

300

Solve for y:

2y+x-3y+2x-7=0

y=3x-7

400

Add. Write in descending order.

(2x^3+x-6)+(3x^3+4x-4)

5x^3+5x-10

500

Expand by distributing, then write with negative exponents.

(x^2/(yp^-4)-(x^2y)/p^-4)x^-2/(y^4p)

y^-5/p^-3-y^-3/p^-3

Final Jeopardy

500

Add:

(4xy)/a+(4y)/(ab^2)+2/(ab)

(4xyb^2+4y+2b)/(ab^2)