An eighth-grade class has 40 students, 19 of which are girls. The class teacher selects 6 girls and 7 boys for an AP math class. If a student is chosen at random from the class, what is the probability of choosing a boy or a student selected for the AP math class?

Describe all the numbers that when rounded to the nearest thousand are 645,000

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.

Me! i will mark you brainliest if you are right and show your i don't get polynomials and all the other stuff. multiply and simplify.2x(^2)y(^3)z(^2) · 4xy(^4)x(^2)show your