What is r in 984=800e^r5

Sandra's scores on the first first 4 tests 87%, 92%, 76%, and 89%. What is the minumum score she needs to make on the fifth test so that her average is at least and 80%?

The school board administered a math test to all students in grade 666 at High Achievers Charter School and determined that 15/%15%15, percent of them were below grade level in math. Based on this data, which of the following conclusions are valid?

Going down the river a boat went 12 km/h. Going up the river it only went 2 km/h. What is the speed of the current? How fast would the boat go if there were no current?

171 round to the nearest ten

One kilometer equals how many meters?

Using quarters, dimes, nickles and pennies how to make $1.53 in 12 coins

What figure has 4 sides & only one pair of parallel lines

What is 1,265 divided by 34

Find the number of degrees in the third angle which is X of the triangle 42 and 100

At a party 53 people arrived. Then 100 people came later on. What is the percent of change.