Which of these two students wrote an expression that is equivalent to ms. olsens expression? 3(4a+2b+2c)+2(a+c)

jake wrote 14a+5b+4c
olivia wrote 2(7a+3b+4c)

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.

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.