At 9 A. M. a 6-foot-tall man casts a 4.5-foot shadow. How long is a shadow that is casted by a 70-foot tree?

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Find percent notation for 0.008 0.008=

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