What is 8 21/40 in decimal form? And need work

What equation results from completing the square and then factoring? x2+4x=7

A plumber charges $45 for a service call plus $25 for each hour that he is working at a customer's house. If he conducts a service call that takes 3 hours, what will the customer's bill be?

The standard length of a fire hose is 50 feet. Departments now need to increase the length by 23%. How long do the new hoses need to be?

Find P (A or B), if the events are disjointed P (A) = 9/25 P (B) = 9/25 A 4/25 B 18/25 C 0 D 9/25

System of linear equations can have how many solutions?

Use the distributive property to simplify the expression. -7 (8x - 3) + x A. x + 10 B. - 15x + 4 C. - 9x - 4 D. - 55x + 21

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All of the following equations have the same solution except ___. 3m+2=-10 2-3m=-10. - 10=-3m+2. - 3m+2=-10

Solve the inequality for x. - 4x + 6 < 50

Indicate whether the following statements is true or false: an exponential growth function eventually exceeds a quadratic function witha positive leading coefficient