Find the product of 21 and (6.3 · 10-4).
a) 0.1323 · 10-1
b) 1.323 · 10-3
c) 1.323 · 10-2
d) 1.323 · 102

Don't know how to find x given these segment lengths

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?