Heidi's mom made flower arrangements for a party. she made 4 times as many rose arrangements as tulip arrangements. heidi's mom made 40 arrangements. how many flower arrangements of each type did heidi's mom make? complete the bar model. write an equation and solve

What are the sotions to the quadratic equation 9x^2=4

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.