Regina spent 3 over 4, of an hour on her math homework on tuesday night. that evening, she also completed spanish, history, and biology homework. she spent twice as much time on her history homework as she did on her math homework, 1 over 2, of an hour on spanish homework, and 5 over 8, of an hour on biology homework. how many hours did regina spend on her homework in all? express the answer as a decimal.

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Could someone with number 1 and 2