Tomas makes balloon sculptures at a circus. in 180 minutes, he uses 252 balloons to make 36 identical balloon sculptures.
a. how many minutes does it take to make one balloon sculpture? how many balloons are vused in one sculpture?
b. what is tomas's unit rate for balloons used per minute.
c. complete the diagram to find out how many b balloons he will use in 10 min

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

Tan198=asin164=? how to solve this? ?

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?