Jim is an electrician. He charges a $150 home-visit fee and $45 per hour, with
the first two hours free. Which equation could elyse use to calculate the cost, c, to have Jim work at her house for 5 hours?

a. c 5 150 1 45(5)
b. c 5 150 1 45(5 1 2)
c. c 5 150 1 45(5 2 2)
d. c 5 (150 1 45)(5 2 2)

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

sas (side angle side)

aa (angle angle)

sss(side side side)

sas find two sides with an angle in between

aa is finding two angles and the third will add up to 180

sss find all sides

step-by-step explanation:

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.

the square root of 16 is 4.

4*4 = 16