30 points don't delete for ed2020
What is the surface area of the rectangular pyramid below?

A rectangular pyramid. The rectangular base has a length of 18 feet and a width of 10 feet. 2 triangular sides have a base of 18 feet and a height of 14.1 feet. 2 triangular sides have a base of 10 feet and a height of 16 feet.
386.9 ft2
593.8 ft2
639.4 ft2
1,053.2 ft2

109 is the nearest whole number/final answer! : )

60

step-by-step explanation:

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!