How do i use a calculator

simple. (How old r u?)

Step-by-step explanation:

You just press the numbers for the equation, then press the two lines above each other at the bottom of the calculator and then see the answer( the addition sign looks like this. (+) the equal sign looks like this (=) the minus sign looks like this (-) the division sign looks this (÷)

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign