Gina sells magazines part time. On Thursday, Friday, and Saturday, she sold $66 worth. On Thursday, she sold $3 more than on Friday. On Saturday, she sold $6 more than on Thursday. How much did she sell on Friday?

Suppose a triangle has two sides of length 32 and 35, and that the angle between these two sides is 120°. which equation should you solve to find the length of the third side of the triangle?

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.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.