JUAN, MARY, CELIA, AND MARK WORK AS INFORMATION SPECIALISTS AT A HIGH TECH COMPANY. THEY EACH SPENT A CERTAIN AMOUNT OF TIME FIXING A PROBLEM WITH THE DATABASE. OUT OF THE TOTAL NUMBER OF HOURS ALL THE WORKERS SPENT. WHAT PERCENT OF THE TIME IS CELIA'S?

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?