These are very difficult for me

These are very difficult for me

you have been asked to contribute to a service project benefiting a local organization. you plan to buy a combination of $5 dollar and $10 gift cards to donate. You plan to buy exactly 20 gift cards...

d=Vi t 1/2 at^2 is independent of what variable? (1)a (2)Vi (3)Vf (4)d

(x/a)+(y/b)+(z/c)=1 for a.

(1/3)y2+12=15

Find the matching value for f in the function below. The independent variable is in radians. ƒ(π/4) = cos(cos-1x)

Define as a variable and write as equation

Sandra has $0.75 more than two times the amount of money that Will has. Together, they have $20.25. How much money does Sandra have?

Explain how solving an equation with several vairablrs is similar and different from the process of solving equations in one variable

Hi, I need help solving for w

u=20, t=1.2, k=-5 D= ut + kr2 (a) Work out the value of D. The answer I got for this is 16.8 which is most likely incorrect because I have never...

Survey research finds that mothers suffer a substantial wage penalty, although the causal mechanism producing it remains elusive. The authors employed a laboratory experiment to evaluate the hypoth-...

Define the variable,write an equation, solve equation, and write the answer in sentence with correct units

The country with the most universities is Country A, followed by Country B, IF Country A has 5,855 more universities than country B and their combined total is 14,165, find the number of universities...

I've been stuck on this problem for a while and I can't seem to get it

I don't understand can u help me

The following formula is incorrect for compound interest with the symbols defined this way, can someone tell me why? Compound Interest is described by A = P(1+rm)^n,...

I = nE ------- nr + R Solve for n

A camping supply store usually prices tents from $68 to $119. What is the range of possible prices for tents on sale? Show your work. All tents on sale: 10% to 25% off. Big Idea: Variable You...

what is the variable and equation?