How to find the sum of the series 0.4+0.04+0.004 + ...

Select the correct product (x2+3) (x3-5)

When a number is decreased by 40% of itself, the result is 18. What is the number

Twenty percent of cars that are inspected have faulty pollution control systems. The cost of repairing a pollution control system exceeds $100 about 40% of the time.

Olá bom dia eu queria saber se quando um número que contém x na sua parte literal e o outro número não tiver nós devemos somar? ex 3x+1 essa equação tem a mesma parte literal? Dá pra somar? obj a materia e adição e subtração de polinomios.

What is the greatest positive three-digit integer that is divisible by 5, 7 and 9?

Aretha's trip to an arty supply store took 1 1/6 hours. Her return trip took only 5/7 of time of her trip to the store. How long was Aretha's return trip? What was Aretha's total driving time?

Rewrite the expression in the form 10^n (10^1) ^3

5 (-2 + x) = 35 Solve for x.

Lisa built a a rectangle garden that is 4 feet wide and has a perimeter of 26 feet. What is the length of Lisa's flower garden

What is 4r+6s-t=-18 3r+2s-4t=-24 -5+3s+2t=15 using elimination method