A right triangle has a leg of 13 cm and a hypotenuse of 21 cm. What is the length of the other leg? Round to the nearest tenth.

8.0 cm

16.5 cm

4.7 cm

272.0 cm

The ratio of Monarch butterflies to Queen butterflies at a butterfly farm was 5:2. If there are no additional butterflies at the farm, what is the ratio of Queen butterflies to the total number of butterflies at the farm? A. 2:7 B. 5:7 C. 7:2 D. 7:5

Han ran 10 meters in 2.7 seconds. Priya ran 10 meters in 2.4 seconds. Who is faster?

Add: 3x (x-y+z) and 2y (x+y-z)

Efrain must spend less than $80 on his phone bill this month. He pays a monthly fee of $16, plus an additional $4 for each long-distance call. 4x + 16 < 80 How may long-distance calls can Efrain make this month? A. x<16 B. x<48 C. x<4 D. x<64

A glass dome for a lighting fixture is in the shape of a hemisphere. The circumference of the great circle of the hemisphere is 12π inches. Which statements about the hemisphere are true? Check all that apply. The radius is 6 inches.

What is the vertex of the function in #5

he mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. Which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

The value of the 2 in 204.75 is how many times the value of the 2 in 103.52

A+b=s+r for s I have no idea how to solve this

What is the degree of a polynomial that has roots of - 2, 4i and - 4i?