Sally is planning to knit a scarf that is one and a half meters long on the first day she plans to knit 1/4 of the scarf and on the second day she plans to knit fifty centimeters more how much more does she have to knit

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.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?