Calculate the formula by using simultaneous equation

1: 2x+3y = - 1

x+y = - 1

roberto is purchasing mulch for his grandmothers garden. on saturday he bought 5 bags of mulch for 20$. he needs to return to the garden center on sunday to buy one more bag.

If you invest $2040 in an account with 5% interest rate for 15 years how much money will you have

What is 3 - |-4| - |2| =

Consider a normal distribution with mean 30 and standard deviation 2. What is the probability that a value selected at random from this distribution is greater than 30

What's the answer to C/-9+6=14 I can't figure out these fractions with variables

Three less than the quotient of a number and 6 exceeds 1. What are the possible values? (Answer the first part.)

Which shapes can the shaded area be divided into to find the area? figure is comprised of a rectangle and 1 triangle. a rectangle and a triangle b rectangle and a square c trapezoid and a rectangle d trapezoid and two triangles

Rounding 845,001 to the nearest thousand

To determine how a city's residents feel about building a new youth center, a group considers surveying 50 random children at a local elementary school. Why would this result in a biased sample? Select three answers.

Suppose an investment of $2,300 doubles in value every decade. The function f (x) = 2,300*2^x gives the value of the investment after x decades. How much is the investment worth after 2 decades? a. $9,200 b. $9,200 c. $92,000 d. $46,000