the ratio of davids typing speed to lisas is 11:9. Lisa can type 54 words per minute if david and lisa work together to type 4800 words article, how many minutes are needed

What is 383 divided by 31

31,969 divided by 488 = ? Divided by? =

A certain isotope decays so that the amount A remaining after t years is given by: A = A0 · e ^-0.03t where A0 is the original amount of the isotope.

Find the axis of symmetry and vertex for the following equations. y=-x^2-4x+1

Iready kara is sorting buttons by length for a craft project the line plot shows the length of each button if kara lines up all the 3/4 inch buttons, what would be the total length

Merritt is driving to Mount Shasta. On her map, she is a distance of 7 3/4 inches away. The scale of the map is 1/2 inch = 50 miles. How far must Merritt travel to reach her destination

The longer leg of a right triangle is 4 more than twice the shorter leg. The hypotenuse is 4 less than three times the short leg. What is the value of the hypotenuse?

Juliana wants to find the mass of a watermelon. what unit should she use?

Multiply. Express your answer in simplest form. 3 3/4 2 2/9

Indicate whether each of the following fractions is proper or improper. a. 4⁄16 b. 75⁄70 c. 2⁄15 d. 6⁄6