Solution to 5x+y=-8 and 4x-2y=-40

A jewelry company prints a hidden watermark on the logo of all its official documents. The watermark is a chord located 0.7 cm from the center of a circular ring that has a 2.5 cmradius. What is the length of the chord to the nearest tenth?

On their vacation the Phlak family stopped twice for gas. At the first stop they bought 12.5 gal. At the second stop they bought 14.2 gal of gas. How much gas did they buy altogether

Factor the polynomial completely: 16t*2-24t+9

Which of the following is equivalent to 5455cm3

A trinomial of degree 4 such that the GCF of its term is 1.

218 rounded to nearest 10

10m is equal to less than or greater than 1km

In mrs. romano's math class of 25 students, 8 of the the students play a musical instrument. What percent of the class plays a musical instrument

Edoardo thinks of a number between one and 20 that has exactly 5 factors what number is he thinking of?

Can be expressed as the sum u=v+w, where v satisfies the initial conditions