What value of a makes the equation true?

1.7a+0.3a=4/5

1. a=2/5

2. a=2 4/5

3. a = - 1 1/5

4. a = 1 3/5

Find the m∠BCA, if m∠DCE = 70° and m∠EDC = 50°. 50° 60° 70° 80°

Rounding decimal to the nearest whole number

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 64 m^3. What is the volume of the sphere? A. 64/3 m^3 B. 32 m^3 C. 128/3 m^3 D. 64 m^3

Business women Maya spends 1/4 hours a day on her cell phone. Her husband Larry spends 3/16 hours a day on his cellphone. What is the total time spent on the phone between the couple per day?

A diver begins at sea level and descends vertically at a rate of 2 1/2 feet per second. How long does the diver take to reach - 15.6 feet?

What is y=-2x+1 y=-x^2+4

Leigh will use 16 connecting cubes to make a model of a playground. The model will be in the shape of a rectangle and will have a height of one cube. In how many different ways can Leigh make the model of the playground?

The ratio of chocolate cones to vanilla cones sold at an ice cream shop is 5:4. If 54 cones were sold, how many were chocolate?

62dividw 7 what remains number

Write a rule for finding the value of any base with an exponent of 0