15 round to the nearest ten

If Johnny had 20 complete living room outfits, disregard color scheme, how many different sets of five complete outfits could be arranged?

Four big water bottles can hold 8 gallons of water. How much water can ten big bottles hold?

4x+9y=69 X=69-8y What is the solution of the system?

There are 16 colors of sweatshirts, 17 of which are cotton and 9 of which are a blend. Each one order a different color with no repeats at random. What is the probability that the friends order only cotton sweatshirts?

Ralph buys a computer for $675. The sales tax rate is 6%. How much did Ralph pay for the computer? Hurry

A car dealership has five exterior color choices, six interior color choices, and two model choices. How many different ways could you choose a car?

In a conditional statement, the consequent is written before the hypothesis. True or False?

Which is larger? 4/5 or 2/3

The buffet restaurant charges $3.25 for the first pound of chicken salad and $6.85 for each pound thereafter. If Y represents the total cost and X represents. The total number of pounds, what is the function rule for this pattern?

The equation y=1.09x describes the approximate number of yards y in x meters. Would negative values of x have any meaning in the situation? Explain