Olivia hopes to complete 45 of the levels of her computer game by the end of the week. So far, she has completed 23 of the levels. What part of the levels must she still complete to meet her goal?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?